Attach custom info to crash report

Hello all!
I am testing Sentry to see if we could use it in our organisation.
I am testing sentry with crashpad client. So far everything looks correct but I would like to know if it is possible to attach custom info (mostly .log files) to the crash report so it would be easier to investigate crashes.
Thanks all in advance and regards

If you’re using you can contact your account rep (or support) to request access to our attachments feature, but its not just in general availability.

OK, however is it not possible to test it under free-plan? We are testing the tool and this feature is crucial to us.
Should we then start trial and activate that from there ?

Support will be able to hook you up during your trial

I have sent message to is that the way to proceed?
How long does it take to get an answer?