marking A+B button as virtual
marking A+B button as virtual

playi/pxt,Microsoft/pxt,switch-education/pxt,playi/pxt,Microsoft/pxt,Microsoft/pxt,switch-education/pxt,switch-education/pxt,Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,playi/pxt,playi/pxt,Microsoft/pxt,switchinnovations/pxt,switch-education/pxt,switchinnovations/pxt,switchinnovations/pxt