We tend to make several replacements during the course of the fantasy drafts. These tend to be people who don't bother showing up to make their picks; or forget; or don't have the time to do it. So, here's a few points of order.
A group manager will give you 48 hours to make up the picked you missed before seeking a swap. Even if you continuously miss your official pick window, you can still catch up after each pick and be okay. We would much prefer it, however, if you didn't, because it badly slows the groups down and we don't necessarily get a big window between the end of the SHL draft and the start of the season.
If you aren't picking because you aren't sure what to do, speak up. Group managers will answer all questions on how SHL fantasy works.
If you aren't picking because you aren't sure who to pick, ask friends. Other players in your SHL or SMJHL teams will happily give you advice on who are great options. If they aren't responding, or you aren't on a team yet (undrafted prospect), head over to the SHL discord and ask for advice. There's always people willing to assist.
If you aren't picking because you don't have the time to make your picks, nominate a proxy to pick on your behalf. Your SHL or SMJHL GM/co-GM will almost always be able to do this for you; But any friend who can show up will do, other than the group manager themselves.
Alternatively, you can PM your group manager with an ordered preference list for when your pick comes up. If you do this, make sure you list more preferences than the number of picks to be made before your turn, to make sure there will definitely be a name on the list your group manager can put in.
Above all, make sure you communicate with your group manager. Group managers are much more likely to look for a replacement if you completely ghost on them.