How can i remappings this one in Lakka on Dosbox?

Hello,Recently I got it(Of course, it’s just an ISO file):

I would like to ask how to remappings it on LAKKA?I don’t know how to define its buttons at all.

With the core and a game loaded, to into quick menu > controls. If you’re wanting to map keyboard keys to the gamepad, set the device type to keyboard, leave the controls menu and come back and it should refresh with the keyboard mappings.

Oh!Thankyou!!It’s works!!!