Adding the Layers button in mobile, as it is on the web version.
There is a drawing set that I have made, with multiple layers to show differences in a more convenient way than the compare tool that is currently in ACC. However my guys out in the field do not have the ability to use the different layers that I made; turning on/off each layer.
I would argue not having this in the mobile version defeats the purpose of having a tab for layers in the first place. However having it on both sides I believe would be a massive benefit for both our office team like myself, and our guys in the field that depend on these drawings to do their work.