As already discussed in other threads that explained how multi-liveries works, those advanced features were only possible in P3D V4, because they used DirectX 11 and DirectWrite (Font rendering), which are both not available in P3D V5 that only use DirectX 12.
Every instance of dynamic text required DirectWrite, which is an API that has been removed in DirectX 12 and would ideally require an even more complex (if DX12 by itself wasn't complex enough ) hybrid rendering using both DX 11 and DX 12 on the same device which, incidentally, requires even more VRAM, and consuming more VRAM is the last thing we want to do in P3D V5.
Also, we used an Open Source library to handle Font Rendering in DX11, which would had to be rewritten to support the above DX11+12 hybrid rendering, with all the above caveats related to more VRAM usage.
That's why we always call the P3D V5 update to be "Multi-livery": not Render To Texture, like we had in P3D V4.
