Lanceindastudio - not sure I understand. If I insert a synth and turn the knobs with W enabled, the automation data goes into the synth track. Are you talking about doing automation via MIDI? Sorry to be dense here, but what you describe sounds promising...
Anyway, here's my workaround.
1. Create an audio track. Right-click on the FX bin and insert the soft synth.
2. Create a separate MIDI track to drive the soft synth.
3. Any automation you create by moving knobs while W is enabled gets written into the audio track containing the synth, and that data can be copied, pasted, re-assigned, etc.
IOW - if you do "manual" instead of "automatic" insertion, automation in the synth track behaves the way you want it to.
I haven't tried this with all synths, all conditions, etc. so if anyone else has any experience along these lines, chime in.