Fill the descriptive fields of the termbank with information

Good evening,

I've added a termbase (Terminologiedatenbank) to my project. When I created the termbase I've added several descriptive fields.

Beschreibende Felder:
Bild
Definition
Quelle
Genus
Auftragsnummer
Boolescher Wert Ja/Nein
Datum
Kontext

How can I fill these later with pictures etc.?

I don't see anything like "add field" ("Feld hinzufügen"), and I also don't see it when I open the termbase in Multiterm.

Could you please help?

Kind regards,

GS

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