Hello Ralf!
Yes, that is indeed possible, but there is some preparation work to do first.
Here is what you will have to do.
1) Copy the file \Notion 3\Support\PluginData\VSL\Rules\VSL_Instruments.prules and rename the copy to VSL_Instruments_MIDI-Out.prules
2) Open the file VSL_Instruments_MIDI-Out.prules with a text editor.
3) Change the entry <plugin id="1448299603"> to <midi-out id=”A”> and the entry </plugin> at the end of the file to </midi-out>.
4) Restart your computer
5) Open Notion and all VSL instruments, that you want to use.
6) Save all VI presets, that you want to use with MIR to your VSL Custom Data folder.
7) Close this Notion project and start a new one.
8) Create External MIDI instruments
9) In the Notion Preferences set a MIDI Loopback device as MIDI Output Port A
10) In MIR load the VI presets, you have saved earlier.
VoilĂ . The automatic keyswitches still work.
Best,
Andi
Vienna Symphonic Library