VST questions

Hey there. I am experimenting with VST support for MuseScore. I have found my VST I want to use. It's an extremely high-grade quality, cloud-based instrument plugin Called Musio By Cinesamples. Again, I have found it and I can choose my instrument, but I cannot get the legato samples to work. It's like using a susains patch, when I want a nice legato between notes. Is there a way to tell Musescore to do that, or is it impossible? Also, do keyswitches interfere? I realize that some VST instruments do not work as well, so I won't be surprised if this one doesn't work as well.