Is it possible to choose where the submit button in the form will be.
Because now its always on the bottom.
I'm guessing you are generating a PDF form and want to have control on where the button should be. You can't position the button in FormsCentral. It is always after the last field on the form. Althought if you have Adobe Acrobat you can either move the button or duplicate the button and have it where ever you want.
If you import a PDF in FormsCentral (as opposed to design you form in FormsCentral then export as PDF) then you can position the submit button in one of the form corners of the form in FormsCentral. In this case you can also move it or duplicate in Adobe Acrobat afterwards.
Open PDF in Acrobat
File > Save a Copy...
Open the copy
Tools > Forms > Edit
Do your modifications. Be careful as some changes could break the submission.
Close Form Edit Mode
Tests your form submission
File > Save as Others... > Reader Extended PDF > Enable More Tools (include form fill-in & save)...