Intercept ack via MITMWeb and modify and send manually

Hello all,

I did a search and didn’t find what i was looking for. I am using MITMWeb to view messages, edit, and resend them. This is working well.

However, I need to intercept the ack response from a request, edit it and manually send it instead of the original ack.

Can someone point me in the right direction please.