Are there any 4-band backbone models for the Train Deep Learning Model tool or is there a way to use my own backbone?

[Ruari_Langland]

Just wondering if anyone has any knowledge of doing deep learning on 4-band imagery using the Arc Pro built in tools?

Additionally wondered if anyone had any luck applying a "bring your own model" approach to setting the Backbone Model in the tool. There are some great models on huggingface I would like to try, and they may need modification to accept a 4th channel:

https://huggingface.co/timm

Thanks in advance!

Ruari