clips that go on top of shoe

A landlord from NJ and PA says:
when removing some lower sashes, I did not realize these clips held the sash in place (they clip on top of shoe). So I broke some of them.

also need to know how to remove them (in the future) and how they snap back in.
Thumbnail of the uploaded file named window clip.jpg
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Bob from SWISCO responded:

See our 15-056. Take a look and see if this is what you need.

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