Commanding your own fleet is an offence now, you say? Are you a single player and don’t know fleet mechanics?
Fleet Warp to target
Broadcast target in fleet window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
CTRL-click on fleet broadcast message, F1, change window
…
no input broadcasting software needed. Just good enough reflexes and a good enough computer for the fast window switching that are all lined up in a line with minimal mouse movement.