Fusion's Timeline Tab is Painful to edit

Hi guys,
I've been trying to move some merges here and there in the timeline and man this is really so painful edit, comparing it to after effect it was so much easier but it just really is a downer to me, something sk simple as a muzzle flash is hard enough to cut when in AE you could use shortcuts
Maybe im wrong, maybe i still don't know how to use fusion efficiently and i find it sk difficult to get around it
Please is anyone knows a video that can help me understand the timeline better that should be great cuz i see many tutorials just not talking about the timeline or even using it
Im pretty sure that if not maby ppl talk about it, i believe that it is just a pain in the butt
Once again correct me if im wrong, i just want to educate myself qith the software
And many many thanks to all
I've been trying to move some merges here and there in the timeline and man this is really so painful edit, comparing it to after effect it was so much easier but it just really is a downer to me, something sk simple as a muzzle flash is hard enough to cut when in AE you could use shortcuts
Maybe im wrong, maybe i still don't know how to use fusion efficiently and i find it sk difficult to get around it
Please is anyone knows a video that can help me understand the timeline better that should be great cuz i see many tutorials just not talking about the timeline or even using it
Im pretty sure that if not maby ppl talk about it, i believe that it is just a pain in the butt
Once again correct me if im wrong, i just want to educate myself qith the software
And many many thanks to all