Is there a way to add context variables (or reach) in pymc

[shuvayan]

Hello,

I would like to know if there is a way to add variables (like impressions) which capture the exposure of the advertising spends in the pymc model structure.
Similar to what gets inputted to Robyn.
Also , if we think about it , Spend Creates Reach via Impression and thereafter comes Revenue. So it should be something of a spend, reach and sales response hyperplane which has a simplified representation in the sales response curve.

I might be completely off the track here so please feel free to reject the idea/assumption.
Also, if there a way to generate Robyn like one-pagers( Clients seem to love those, no matter how bad penalized regression can be for MMM). :)

Note: This is not an issue per say, but more of a discussion point