In the next Saurus2 update we'll implement drag & drop modulation. You can grab and LFO or and envelope with your mouse and then drop it to a knob. Then a matrix entry is created automatically.
Furthermode the synth will get new knobs. The modualtion depth will be viusalized as a sector.
A right-click on the knob will open a context menu where you als can assign modualtion sources.
Furher enhancements: Enhanced sound quality by adding a high-end resampling algorithm
The update will be free for all Saurus2 users. It is planed for Autumn.