so I have the following funnel step 1 (install) step 2 (sign up) step 3 (buy) step 4 (buy) and this has a 30 days conversion time. but what I’m trying to obtain is having a 1 day conversion time fro step 1->2, a 7 days conversion time from step 2 to step 3 and a 30 days conversion time from step 3 to step 4. how can I do this?