Haven't had a chance to use it yet but looks interesting.
Everything seemed to work good, fill and eyedropper will save a bit a time overall.
If possible, and I'm not saying you have to, would it be possible to add a clipboard of warp coordinates. IE if I connect a tile from map 2, 7,7 to map 3 8,8 ; then opened another map in another tab have the clipboard information available in order to connect 8,8 back to 7,7.
I would only see it being ease of access on a larger scale, otherwise it's really not needed.
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Former multi-server mapper.