As in- when done using cmnd … the spacebar is equiv. to clkng Arrow ?
Yes. The SPACEBAR key will activate the SelectionTool.
When using most native tools in SketchUp, use the ESC key to reset the tool.
(Sometimes you may need to click the ESC key twice.)
If you wish to know how to change or assign your own keyboard shortcuts, see:
Are you are on a Mac ?
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