For the schematic symbol, just open up the symbol drawing, edit it and use Swap/Block Update to update it for all the drawings in the project.
For the panel symbol, most ACE symbols do not have the attributes stored in them. You will need to add them to the symbol yourself if you want them in a specific location. ACE uses the wd_ptag*.dwg files to add the attributes to each footprint upon insertion.
I tend to just add the attributes that I want to be on each footprint because I do not like the default locations.
Ace User since 1998