Device order selection criteria – last device?

Hello,
I’m quite new to remotify but I’ve programmed python remote scripts before so I sort of know the Ableton API. I have a homemade MIDI controller with lots of knobs and I’d like to create a remote script that lets me control a large audio effect rack at the end of every track’s signal chain. This would let me mix with a custom channel strip a-la Softube’s Console 1. I am considering upgrading to Control Surface Studio, for this purpose but it’s not clear to me how the selected device can be mapped correctly.

It looks in all the examples/videos that mapping to a specific device on the selected track is done by choosing its order from the beginning, e.g. 1st, 2nd, 3rd, etc. I often mix with lots of different devices in the signal chain, so I’m really only interested in mapping the last, or 2nd-to-last, or 3rd-to-last devices (even if there are many other FX preceding it). Is it possible to choose a specific device by name, or by order from the end of the chain? Or would this only be possible by creating dummy/group tracks or some other workaround?

Thanks!