At home, I use the MS Surface Pro as my desktop PC. It is always connected to a large LCD screen, but I never take the Surface Pro on the road as the screen is too small for me. I use a USB 3.0 docking station, which along with Asio4All gives me a multi-client environment. Surprisingly, it works very well with pretty good low latency in running two applications at the same time.
When I got my ICA4+, I wanted to achieve an ASIO multi-client operation for my travel hybrid tablet and I installed Voicemeeter Virtual Audio Mixer. It worked very well. It is a free program but I liked it so much that I made a donation. They have a more advanced version called Voicemeter Banana.
At I was overwhelmed with all the features of the ICA4+ decided to uninstall Voicemeter and wait until I understand the ICA4+ fully. Now that I am much more comfortable with my ICA4+, I will reinstall Voicesmeter to have Asio multi-clent.
Voicemeeter seems to be a very flexible, professional grade application. I thought this would be a much better option than Asio4all not only for the purpose of ASIO multi-client but other audio needs.