I am renting a Fuji XF 100 - 400 for BIF for 2 days here in Ontario, Can. I do not have a battery grip, nor the store rent one. What are the best settings on a X-T2 as I will not have much time fiddling with settings. Any suggestions? I read all about the goods stuff but I want to see for myself. I am familiar with BIF using Canons.