Toggle Frozen Status

Toolbar / Icon:
       
Add-on:  QCAD Professional
Menu: Layer > Toggle Frozen Status
Shortcut: Y, F
Commands: layertogglefrozen | yf

Description:

This tool toggles the frozen status of the current layer. You may also toggle the frozen status of layers by clicking on the ice or sun icon beside the layer name in the layer list.

Note that block references on frozen layers are not shown while block references on layers that are off are still shown (provided that they contain any entities on layers which are on and not frozen).