Pan alluogir y dewisiad yma, bydd y cymhwysiad o hyd yn dangos i chi rhestr o allweddau cyhoeddus y gallwch ddewis un ohonynt i' w defnyddio ar gyfer cêl- ysgrifo. Pan analluogir, ni fydd y cymhwysiad yn dangos yr ymgom ond os mae' n methu canfod yr allwedd iawn neu os mae mwy nag un a ellir eu defnyddio.
When this option is enabled, the application will always show you a list of public keys from which you can choose the one it will use for encryption. If it is off, the application will only show the dialog if it cannot find the right key or if there are several which could be used.