That is done with the LMMS-vst-dial-array
All supported VSTs can have all paramters connected to automation through that!
You can read how to do that here:
https://lmms.io/wiki/index.php?title=Working_with_VSTs
Scroll down to the sentence:
Here is a picture that shows the wrench-button on the VST-instrument:You can also automate the dials and sliders in your VSTs.
The Wrench is right below the folder-icon in the middle-part
Besides that, since you are new in Forum
Welcome LenninP !
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions