Sometimes changing an engine compartment leads to a redesign of half a deck.
All my power nodes in those areas are now in the wrong place - eg:
I have a choice of clearing 1/2 the nodes by hand(already done at the bottom of the screen, before the screenshot was taken), or clearing everything and relaying the power grid in the green area. (the top floor of the Eruga is another good example of this)
Proposal:
A new button between close and clear grid for 'Tidy Grid' that removes all nodes that are not a room connection.
This will allow a cleanup for altered areas of a floor without having to rebuild from scratch everything.
Yes may disconnect 1 or 2 nodes from the green area, but re-placing those is much quicker than replacing the entire grid.