Click on Admin Settings in the main menu.

Go to the Manage Modules tab.

From the Settings section, select Assets.

From the Visible column, toggle which fields you want to include on the asset form.

A checkmark means on, the field is included

An "x" means off, the field is hidden.

From the Required column, toggle on which visible fields you want mandatory to fill in on the asset form.

Click Save in the top right corner. Click Discard Changes to cancel and close the screen.