Is it possible to submit a form with a dedicated button?

[seo.gops]

Is it possible to submit a form with a dedicated button?

[Shree Vaghani]

Yes, it is possible.
when it comes to development, nothing is impossible. it can be solved by javascript and ajax. All you have to do is use events like blur or change etc. & you can perform a form submission too.

In fact, java scripts have submitted functions that can submit the for to required action.