Skip to content

Menus, Panels and Windows

This page covers everything that is not a pie: pop-up panels invoked through wm.call_panel, sidebar panels living in the iOps tab of the N-panel, and the floating Modifier window.

IOPS TPS panel (Transformation / Pivot / Snapping)

bl_idname: IOPS_PT_TPS_Panel Context: VIEW_3D and IMAGE_EDITOR Type: Pop-up panel

Source: ui/iops_tm_panel.py. Invoked by iops.call_panel_tps.

Default binding: Ctrl + BUTTON4MOUSE (mouse back button with Ctrl).

The panel renders different layouts depending on context.area.type.

VIEW_3D layout

Top toolbar row (left to right):

  • space_data.lock_cursor toggle (also drives inputs.use_mouse_depth_navigate).
  • inputs.use_rotate_around_active.
  • tool_settings.use_mesh_automerge and use_mesh_automerge_and_split.
  • use_transform_correct_face_attributes, use_transform_correct_keep_connected, use_edge_path_live_unwrap.
  • iops.transform_orientation_create — create a custom transform orientation from the current selection.
  • iops.homonize_uvmaps_names — rename all UV layers on selected meshes to ch1, ch2, ...
  • iops.uvmaps_cleanup — remove every UV layer from selected meshes.
  • iops.object_name_from_active — propagate active object's name to selection.
  • Optional rows for third-party addons when detected: Batch Operations, Unreal OPS (add/remove from active collection, make active by object, select collection objects, cleanup empty), MACHIN3tools shading pie (smooth/flat/auto-smooth/clear-normals plus 30°/60°/90°/180° angle presets via iops.object_auto_smooth or machin3.toggle_auto_smooth depending on Blender version).

Body is a 4-column grid_flow:

Column Contents
1 — Transformation Gizmo toggles M/R/S (translate/rotate/scale gizmos), transform_orientation_slots[0].type, custom-orientation rename + iops.transform_orientation_delete.
2 — Pivot Point tool_settings.transform_pivot_point expanded, iops.edit_origin toggle (drives use_transform_data_origin and active's show_in_front), use_transform_pivot_point_align, use_transform_skip_children.
3 — Snapping snap_elements dropdown, snap_target expand, self/align-rotation toggles, conditional use_snap_peel_object when VOLUME is in snap elements, conditional se_snap_to_same_target when FACE_NEAREST is set, backface culling, selectable, translate/rotate/scale snap toggles, snap_angle_increment_3d + precision.
4 — Snap Combos Eight iops.set_snap_combo buttons (idx 1..8, labelled A..H) recalling stored snap presets.

IMAGE_EDITOR layout

  • Top row: iops.reload_images, space_data.display_channels expand, show_repeat.
  • Body (MESH + EDIT_MESH only): 3 columns — UV selection mode block (use_uv_select_sync, uv_select_mode, uv_sticky_select_mode), Pivot Point expand, Snap block (snap_uv_element, optional VERTEX target, Move/Rotate/Scale affect toggles, snap_angle_increment_2d + precision).

IOPS Data panel

bl_idname: IOPS_PT_DATA_Panel Context: VIEW_3D or UV editor + active MESH Type: Pop-up panel

Source: ui/iops_data_panel.py. Invoked by iops.call_panel_data.

Default binding: Ctrl + Shift + BUTTON4MOUSE.

If the active object's mesh data is None (e.g. linked object) the panel reports Mesh data not available (linked object) and exits early.

Top toolbar row

  • iops.homonize_uvmaps_names (icon UV_DATA).
  • space_data.show_repeat toggle when invoked from a UV editor.
  • UV-channel "keep N" cleanup chain (labelled All, 2+, 3+, 4+, 5+, 6+, 7+, 8): iops.object_clean_uvmap_0 through iops.object_clean_uvmap_7.

Body — main row with 3 lists side by side

UVMaps - template_list of me.uv_layers (MESH_UL_uvmaps, 5 rows). - Side buttons: iops.uv_add_uvmap, iops.uv_remove_uvmap_by_active_name, iops.uv_active_uvmap_by_active_object, iops.mesh_uv_channel_hop.

Color Attributes (Blender 3.2+) - template_list of me.color_attributes (MESH_UL_color_attributes, 5 rows). Active index is mirrored through props.iops_active_color_index with a _iops_color_sync_lock guard to avoid retag propagation on object-switch redraws. - Side buttons: geometry.color_attribute_add, geometry.color_attribute_remove, MESH_MT_color_attribute_context_menu. - On Blender < 3.2 the panel falls back to a MESH_UL_vcols list with mesh.vertex_color_add / mesh.vertex_color_remove.

Vertex Groups - template_list of ob.vertex_groups (MESH_UL_vgroups, 5 rows). - Side buttons: object.vertex_group_add, object.vertex_group_remove (forced all_unlocked = all = False), MESH_MT_vertex_group_context_menu, and when a group is active, object.vertex_group_move UP/DOWN. - When in EDIT or in WEIGHT_PAINT with vertex mask, a second row exposes object.vertex_group_assign, vertex_group_remove_from, vertex_group_select, vertex_group_deselect, plus a vertex_group_weight slider.

Body — Materials block

  • template_list of ob.material_slots (MATERIAL_UL_matslots, 3 rows or 5 if sortable).
  • Side buttons: object.material_slot_add, material_slot_remove, MATERIAL_MT_context_menu, material_slot_move UP/DOWN when sortable.
  • template_ID(ob, "active_material", new="material.new") row.
  • In EDIT mode: row with material_slot_assign, material_slot_select, material_slot_deselect.

IOPS Transform panel

bl_idname: IOPS_PT_TM_Panel Context: VIEW_3D, OBJECT mode, supported object type Type: Pop-up panel

Source: ui/iops_tm_panel.py. Invoked by iops.call_panel_tm.

Default binding: Ctrl + Shift + T.

Compact (8 ui units wide) column showing the active object's location, rotation_euler, scale, and — for MESH/CURVE/FONT/ARMATURE/META/GPENCIL — dimensions.

Poll requires an active object of any of: MESH, CURVE, EMPTY, FONT, LIGHT, CAMERA, ARMATURE, LATTICE, META, SPEAKER, GPENCIL, SURFACE, VOLUME, LIGHT_PROBE in OBJECT mode.

Collection Append panel

bl_idname: IOPS_PT_Collection_Append_Panel Context: VIEW_3D, OBJECT mode Type: Sidebar panel (iOps tab, default closed)

Source: ui/iops_tm_panel.py. Also reachable as a pop-up via iops.call_panel_collection_append.

Default binding: no default binding.

Three-step workflow against a selected linked instance:

  1. Scan — iops.scan_source_collections populates props.iops_source_collections.
  2. Select — template_list (IOPS_UL_SourceCollectionsList, 5 rows) of source collections with per-row is_selected checkboxes. Below: iops.select_all_collections with action=SELECT and action=DESELECT.
  3. Append — iops.instance_collection_append with a live counter Append (N selected).

Empty state shows No collections scanned yet. A help box at the bottom restates the steps.

IOPS Object Color panel

bl_idname: IOPS_PT_Object_Color_Panel Context: VIEW_3D, iOps sidebar tab Type: Sidebar panel (default closed)

Source: ui/iops_object_color_panel.py.

Default binding: no default binding (sidebar panel).

Rows:

  • Color picker bound to scene.IOPS.iops_object_color.
  • iops.object_color_copy_from_active (icon EYEDROPPER) — loads the active object's obj.color into the picker.
  • iops.object_color_apply (icon COLOR) — pushes the picker color onto every selected object's obj.color.
  • "Recent" two-row palette: RECENT_SLOTS (8 by default, imported from operators.object_color) swatches iops_object_color_recent_<i> each with a numbered iops.object_color_apply_recent button (index = i). Picking a swatch applies that color to selection and loads it into the picker; swatch order is not reshuffled by clicks.

IOPS Vertex Color panel

bl_idname: IOPS_PT_VCol_Panel Context: VIEW_3D, iOps sidebar tab Type: Sidebar panel (default closed)

Source: ui/iops_tm_panel.py.

Default binding: no default binding.

  • Active image-paint brush color picker (only if a brush exists).
  • In OBJECT mode: template_ID palette picker on tool_settings.image_paint.palette with palette.new, plus template_palette row when a palette is set.
  • iops.mesh_assign_vertex_color — Set Color.
  • iops.mesh_assign_vertex_color_alpha — Set Alpha.

Modifier window (floating)

bl_idname: iops.window_modifiers Context: any (requires a valid window context) Type: Floating window (Properties editor)

Source: ui/iops_mod_window.py. Operator label: IOPS Modifiers Window.

Default binding: Ctrl + Shift + F19.

Toggling behaviour — if any single-area PROPERTIES floating window exists it is closed and the operator returns. Otherwise a new 350x550 window is created.

Two creation modes, selected by addon prefs.modifier_window_method:

  • RENDER — temporarily overwrites scene.render.resolution_x/y to 350x550, calls bpy.ops.render.view_show("INVOKE_DEFAULT"), restores resolution, removes the leftover Render Result image. After the window opens the operator shows the Navigation Bar and flips its alignment to the right side via screen.region_toggle + screen.region_flip.
  • NEW_WINDOW — calls bpy.ops.wm.window_new() under a temp_override(window, screen). After the area is retyped to PROPERTIES the operator looks the window up by HWND via ctypes (Windows-only path through user32.EnumWindows / SetWindowPos) and force-sizes it to 350x550. Header and Navigation Bar are hidden via screen.region_toggle.

In both modes the area is set to PROPERTIES and only the Modifiers tab is left visible — every other space.show_properties_* flag (tool, scene, render, output, view_layer, world, collection, object, constraints, data, bone, bone_constraints, material, texture, particles, physics, effects) is set to False; only show_properties_modifiers stays True.

The detector for "is there already a modifier window" iterates wm.windows[1:] looking for a single-area PROPERTIES window. That window is closed via wm.window_close under a temp_override(window=...).