i have 2 questions about Lemmy pls

I just made an account, this is my first post. hai!!

I've used Reddit for almost a decade across multiple accounts and I'm looking for a new aggregator to lurk on cuz like many other ppl I'm not super happy with changes Reddit's making to their API

1. Is there a way for me to organize, like, collections of communities like Reddit's custom feeds/multireddits? This was the main thing that made Reddit useable for me, as I have many interests that I fall in and out of in cycles, and it was easier to just browse my multireddits with the content I was interested in seeing at any given time instead of browsing r/all or browsing a feed of all the subreddits I was subscribed to.
2. is there a way to stop post feeds from automatically updated when there are new posts? often when i'm about to click on a post, the feed updates, and the post i was about to click on gets pushed down and i end up clicking on something else that i didn't want to click on. I would rather it not do that personally.

thx :3