videos and pictures.

[billybatz9]

I know you can limit pictures in sizes to help with memory...
but can you limit videos in any way?

 

[Jeremy]

XenForo doesn't locally store videos, so you shouldn't be worried about memory.

 

[whynot]

I know you can limit pictures in sizes to help with memory...
but can you limit videos in any way?

Do you mean attachments?

Maximum Attachment File Size (KB)
Maximum Attachment Image Dimensions

There is no limit for videos other than the attachment size

 

[billybatz9]

what are "maximum tag alerts per message" in the group options?

 

[Moshe1010]

what are "maximum tag alerts per message" in the group options?

The maximum amount of users you can tag with "@" .It would bring an alert that you've tagged them.