As the title says. I've been spending a fair amount of time working through the different possibilities with parameterised blueprints but I'm hampered by not knowing what is possible. I found out a lot from following this youtube tutorial on creating a bot mall , but they didn't say where they got ...

You kinda can do this, just with a few caveats:
Firstly, when placing the parametrised blueprint you wish to edit, don't select anything for the signal parameters. When you update the blueprint using "select new contents" any Formula that contains a raw parameter will be preserved.
Unfortunately the ...

[2.0.10]Variation on the same bug/more details
To some extent I believe this is working as expected (more of an improvement request than a bug report), and it makes some more sense for the Signal Types to be combined (Eg changing an iron ore station with circuit stuff to be able to set the item ...