Filter on Commercial Proposal Statistics

Hello,

I added an additional attribute in the configuration of the “Commercial proposals” module.
I would like to add it to the filters in the “Commercial proposal statistics” section.

Is it possible to do this and if so, what is the method?
Thank you.

Hello,

I don’t think it would be possible by default.
May be a specific external module can do so?

Thanks for your answer but this is not a good news.