Thanks, I will check it out.   I forgot to mention the second question:  The following setting: (for example for) a compressor with the typical parameters (Treshold, Ratio, Attack, Release, Makeup,..) For every parameter one rotary potentiometer and 4 further potis for special functions.  Now I want the programm to recognize when i open a compressor plugin. It should sent the plugin information to that potis so that I can edit it easily.  If possible I would like to built the same setting for eq, limiter,...