Make illegal part placements in build mode less annoying

[open portal]

1. When having symmetry enabled but one copy of the part cant be placed the other(s) should be placed regardless. This occurs mostly when trying to place doors.
2. There should be the following option: Trying to delete a part which would disconnect stuff from the rest of the ship just deletes all disconnected parts instead of doing nothing.

[warm nimbus]

I personally really like the limits to part placement. It gives a reminder to disable symmetry when there's a slight assymetry, and it prevents me from accidentally removing half my ship because i forgot a connection

When you have crew construction enabled the latter would be especially annoying since the order of destroying everything is already sent.

[dawn cradle]

part 1 is good

[dusty isle]

Part 2 may be annoying if you accidentally do it but part 1 is good

[wide shard]

you can cancel orders

[open portal]

2 is meant for creative

[rustic pike]

I can so doing this with doors specifically, but I'm hesitant to do it with other parts. What if you could hold a key to automatically enable blueprint mode if a part can't be built?

[open portal]

Doors are where this is most relevant anyways imo. I just suggested it to work with other parts cause I though it might be easy to generalize.

[silent light]

I agree with this (Even for door), made me better at hitting M and being mindful of symmetry

[gleaming holly]

Better to add it as a toggle or though cntrl+delete, because some people may get annoyed with accidentally deleting big chanks of the ship