How can I remap the key that either brings this dialog up OR the Steam screenshot key???

[Bombaatu]

I updated mods and now this dialog pops up whenever I take a screenshot:

[Kimera Industries]

The Steam screenshot key is changed through Steam itself.  You go to Settings -> In-Game and it should be there. By default, it's F12,  but in KSP1 that coincided with the aero overlay so I changed it to F1. It may take a while to update.

[munix]

This should no longer be an issue in SpaceWarp 1.8, since the Configuration Manager was removed and replaced by the Mods tab in Settings.