Add a tool on a hotkey and/or on the new toolbar that lets you select all entities that should change the channel. The tool can select the entities similar to selecting entities with the cut tool or the blueprint tool. The mod Transfer of entities does a very similar thing (Though it crashes on my setup after selecting anything). Then there is also no need for a GUI popping up for some special entities, which might make it more compatible.
This would make it a lot better to retroactively split logistic systems, as you cant just copy, paste between requester chests.
It could also make it easier to select things that can just connect and read from the logistic network, like inserters, though I can understand if it is just not possible to have inserters or pumps of different forces work together. This is not that much of an issue though, as it is possible to workaround this with circuit wires to roboports.
