oil catch can question

[Force88]

I know there have been a hundred threads over the years but I cant seem to find a concrete answer for my question and a lot of the images people posted dont work anymore. I have a lot of oil inside the front of my turbo and I would like to stop as much of that as I can. I only have 1 catch can and from what ive read, putting it on the pcv hose seems to be better than the rocker breather. can I connect my vented can to the pcv and leave the rocker breather hose connected to my turbo intake? or should I put a breather on the front vent to stop any oil from getting to the intake. the can wont be returning to the manifold just vented. and do I need to block the hole on the manifold once I disconnect its hose and connect it to the can?