Big fan of the schematic and symbol editors, very few notes (beside the app-wide ones)
It's be nice if I could have dragging a symbol change parallel "S" wires to parallel "Z" wires without getting them all jumbled.
Sometimes the symbol editor wants to make me drag things a multiple of the grid instead of to the grid. Like if the grid is 0.5mm and something is at 0.51mm I can drag it to 0.01mm or 1.01mm but not 0mm or 1mm or 0.5mm.
PCB and footprint editors:
Biggest thing is plz stop segfaulting
And doing glitches that are probably the same root as segfaulting. Some complaints might actually be memory corruption bugs causing weird behavior, so...
Dragging multiple footprints isn't algorithmically any different than dragging 1 footprint with multiple pads. Plz make them behave the same.
I have an old thread about trace-moving behavior.
The footprint editor feels like a PITA, but I'm (mostly) not sure how I'd fix that.
The grid is mostly useless because often the mechanical reality of the part doesn't conform to a grid.
I want to be able to put in dimension constraints, like I did for mechanical parts in whatever CAD we used in middle-school shop class. (Related to the grid being useless?)
Have defaults that match the KLC.
Whether I use multiple lines or a polyline, I always feel like I made the wrong choice.
Oh, and I know there's already an open ticket about "you should be able to have footprint libraries as a single file, and symbol libraries as a folder", but +1 to that, symbol libraries as a folder would be great.
(Also, the ".pretty" directory-suffix for footprint libraries is a weird name. ".kicad_fp_lib" would make much more sense.)