Fill From a computer

Hi everyone,

I'm actually looking for a solution to fill form from a computer and post
the submission on my ODK aggregate server.

I see that there is and

But the first one works only with formhub and the second one i don't know
how to add it to my aggregate server.

If there is a software or another solution to solve this problem i'm really
interested. Moreover if a next version of aggregate could add this feature
it will be very helpfull.