Can I use the App & Ekos on PC/Mac to control my equipment at the same time?

Yes. It is possible to do this by following these steps:

In StellarMate App

  1. Start your equipment profile.
  2. That's all

In Ekos on PC/Mac

  1. Make sure you are connected to the same network as StellarMate.
  2. Create a new equipment profile with the same drivers started in the App equipment profile.
  3. Set the profile to remote and the host to stellarmate.local
  4. Make sure INDI Web Manager is UNCHECKED. This is very important.
  5. Save and then click start.
  6. Done!

Ekos Equipment Profile