Hi, I apologise if this is a trivial question but I am new to amplitude and the community.
I have set up a dynamic cohort based on a specific event, however this event was only recently added to our product, and as such I have a large number of users who were never given the option to perform this event in the past.
For the purposes of segmentation, I have manually atirbuted the correct cohorts to these historic users, and was hoping to be able to add them to the dynamic cohort which will now be my ground truth.
I know how to create a cohort based on a csv list, but cannot find a way to add these users to the dynamic cohort. Is there anything I can do to join them? or am I stuck with broken data for all eternity?
Thank you!