>I've just designed a form that will show empty value for some of fields but that's not linked directly to the table so I just put

Why?

Anyway, if you really need to not have your controls bound to the data source, you can use a temp table (with the same structure as the real table) with just one record as a buffer. This would ease the add/modify operations. I used this technique in the old days of FP2.6 when there was no native data buffering.

Vlad