The "window" tab is in top of a solidworks window.
It is a standard Windows function in MDI (multiple document interface) Windows interfaces (and SOLIDWORKS is an MDI).
What it means in this context by icons is minimized windows. So, if you have 4 documents open and minimize them all, and move the minimized windows around, it may look like this:
Then if you select the Arrange Icons command, it will look like this:
It isn't that useful in SOLIDWORKS because users rarely minimize documents nor move around the minimized versions of the windows when they are minimized. But, it is a standard Windows function and has always been there since SOLIDWORKS 95.
Your guess is as good as mine!
Seriously, what does it do?
Neat. Could probably do with a line in the Help documentation about it, a search for "Arrange Icons" only brings up one hit that then doesn't talk about using the Arrange Icons command.
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