If you damn (beep) would'v read it closely, it doesn't act like the insert key. It doesn't replace what is on the brush, but the whole adventive particles of the same kind. Ex.: I take water, and click a pile of sand while holding R, every particle in that pile would turn to water. Althrough there is a way to do this (fill the whole screen with an unused element while paused, CTRL-SHIFT-CLICK clear the pile, then filling the hole, and then floodfill-deleting the thing you filled the screen with. But it's a slow and painfull process.
@cinebox!110150 You have a Mac then. There, another reason why PCs are better. There was talk of changing it so Mac users could have the tool as well, and it's very simple to change it, so they might do so.
Highfive!
And there is a replace mode? I never noticed.....but I don't spend much time on TPT so yea...
Well, one problem with replace mode: You can't use both ctrl and shift and the same time. It does nothing. I want a way where it can replace everything of a single element.