Hi tferr,
Nothing wrong with your browser here.
The list you are showing in your photo is not an action list but it shows the tasks related to an action in the action list. This list shows the tasks to be performed upon receiving a trigger. And yes, a maximum of 8 tasks can be programmed with each trigger. If you need more tasks programmed to this trigger, just add another action in the action list and specify the same trigger again. Now you can add another (or: up to) 8 tasks that will be performed. When receiving the trigger, now a total of (up to) 16 tasks will be performed.
Remember you can create up to 48 actions in one action list and up to 64 actions system wide.
I hope this answers you question. Happy progging!
Maarten