Fuel units back to Lambda

Hi Guys can I get some help please.?

I was doing some work in the editor today and was playing around in the fuel map. As I have worked out you can change the units of the parameters in the editor by clicking on the unit symbol (when green). While in the Base fuel map I clicked on the Lambda symbol and it cycled through all the units and now I cant get it back to Lambda. Its cycling between AFR 14.7 and AFR 15.5!!!

What have I done wrong?? cheers in advance.

right click on any cell in the table-units-then select whatever unit you want.

:doh:

Thanks Bill.