MS Access Form View I want to size a field but i can't separate it from other fields and other fields?

size along with the field i want to size. i have several groups of fields in design view of form. whether i right click and choose properties or if i click on the cell which highlights otehr adjacent cells which are grouped with the cell, when i move the cursor rightward to lengthen the field, the fields below size as well. how can i size a field without the others sizing as well. thanks.