Custom fields in short description table - by: Sebastian Hoffmann

Hello,
is there a possibility to set custom fields in the category view?
I have to set an event typ which should be listed as the first entry in the table on the right side of every short description.
Additionally I need a field which holds the duration of an event (days) and an entry which shows a overview of all children-event dates.
Can you please help me with these improvements?

Best regards
S. Hoffmann