This page documents gladish keyboard shortcuts.

Action Shortcut
New Studio Shift+Ctrl+N
Start Studio F5
Stop Studio F6
Rename Studio Shift+Ctrl+R
Save Studio Ctrl+S
Save Studio As Shift+Ctrl+S
Unload Studio Shift+Ctrl+U
Start Application F2
Toggle toolbar visibility Ctrl+T
Arrange canvas Ctrl+G
Create Room Shift+Ctrl+C
Delete Room Sift+Ctrl+D
Load project Ctrl+O
Unload project/Clear Room Ctrl+U
Zoom In Ctrl "+"
Zoom Out Ctrl "-"
Zoom to 100% Ctrl "0"
Zoom to fit Ctrl "="
Clear XRuns and Max DSP Load "c"

Also check the Graph manipulation tips