Keyboard shortcuts

Industry-standard keys (Maya, 3ds Max, Blender, Houdini, Photoshop, Unreal). None of them touches Unreal's viewport navigation, and none fires while you type in a text field.

Keys	Action
Click / drag on empty space	Pick / box select. Shift adds, Ctrl removes.
Double-click	Select the whole part under the cursor (Shift adds)
Ctrl+A	Select the whole part of the selection; again: the whole mesh
Esc	Clear selection (Edit Pivot: cancel)
Ctrl+I / Ctrl+Shift+I	Invert selection
= / - > / < Ctrl+Num+ / Ctrl+Num-	Grow / shrink selection
H	Hide selection
Alt+H / Ctrl+H	Unhide all
Shift+H / I / Ctrl+1 / Num /	Isolate selection
F	Frame selection (whole mesh when nothing is selected)
Home	Frame the whole mesh
V	Select tool
T	Move tool (bones, root)
J	Place Bones tool
R	Paint Weights tool
P / Insert	Edit Pivot tool
Enter	Edit Pivot: accept the pivot
B	Brush / island selection
[ / ]	Paint: brush size. Otherwise: wind weight of the selected bones
Shift+[ / Shift+]	Paint: brush strength
Shift / Ctrl + paint	Smooth / invert (Add <-> Subtract) while painting
Space / Alt+V	Simulate Wind on / off
Alt+1 ... Alt+5	Display: Lit, Parts, Clay, Weights, Wind
5 / 6	Display: Clay / Lit
Shift+1 ... Shift+6	Tabs: Parts, Bones, Wind, Interaction, Build, Docs
G	Hide / show all viewport helpers
F2	Rename the selected bone or part
Del / Backspace	Delete the selected bone, or remove the selected triangles from their parts
Ctrl+Z / Ctrl+Y / Ctrl+Shift+Z	Undo / redo
Ctrl+S	Save the rig now (autosave file)
F7	Build Skeletal Mesh
F1	Docs entry of the hovered control, otherwise this sheet
Ctrl+Alt + hover	Extended tooltip
RMB + W A S D Q E Alt + mouse MMB	Unreal viewport navigation (unchanged)