sftp/ftp access without ssh access

[Disk-MTH]

Hello, I've been using snowflake for a while, but for a few days I'm facing a problem: can't access an sftp server if ssh is forbidden. (I saw on your README that ssh was used for communication with the server) So I would like to know if you could add the possibility to choose (in the connection menu) which protocol to use in order to make snowflake more versatile (because I I have to part with it for servers with ssh disabled and I think others have had this problem). I do Java development but don't have the skills and time to do it myself, but I'll be happy to help if I can.
Thanks for reading and thanks in advance if you take the time to do so.