With PC, all you need is just hit delete key when it is focusing on the field.

But what about Filemaker Go12?

When you press the pop-up menu key, you can't hit delete key with iPhone or iPad.

Is there any good solution????

I have resorted to adding a "blank" to my value list or by selecting the "Allow Other" option, which is a bit of a pain for the user.

you can put a button next to the field the user can click to delete it's contents

Hey guys!!!! Thanks for the replies.

I finally found the best solution!!!

Press the field for a while, sub-menu should pop up.

Then select "delete" That's it!!!

But this is so tricky that user never would notice and find out.

So we have to let users know first when they open the file.

To be honest, I'd like to Filemaker corp. to implement delete option when it's pop-up list.