Several issues raised here...
Continually showing versus occasionally showing:
Character View Screen (CVS) is always occasionally, 3D View (3DV) is always continually.
However, CVS is fully scripted by me, so I can show all kinds of things never before seen in DC, things you didn't know you needed to see until you see them.
3DV is mostly not scripted, though I can do the location and time as I want (so can others), but I can only place where the names, AC and HP are placed, but not if they are shown or not. If you think someone would want to show mana too, I think you are probably right. But I might want to show mana but not AC. I would like to be able to script the 3DV (and the Item Screen too)
Additionally, I would prefer to have a TimePasses Hook, where Parameter  is the time, as per the $GET_PARTY_TIME() function. And since I am asking I would love to have 3 other parameters with Days, Hours and Minutes