@Hardin-Alucard,
You can choose from the available cards by pressing Edit cards right underneath the widget:
What i want to ask is if it is possible to add more cards or custom cards other thn the given cards
@Hardin-Alucard,
At this time no, although we do plan to add additional cards as we move forward. Note that you can view upcoming features/fixes on the widget project board on our Github:

