Tile Region Select/Shift/Fill? (For Level Design)

(I wasn't sure if I should make another thread per feature request, so I apologize in advance)

Hello again! I've been using Tiled for a while now but was hoping to make the full move over to PyxelEdit. Is it possible to select an entire region of tiles and shift them around the map, and also use a "tile fill tool" to fill an entire array of -1/unidentified tiles with , similar to how the drawing Bucket works? I think these features would help immensely for level design!

Thank you again for your time!