Add "scp" to "share via" or "send via" menu In the photo gallery application a pop-up menu allows selecting various destinations for "share via". 

Is it possible to add "scp" to this list? There seem to be a number of scp clients out there but I don't know if any one of them can add itself to the "share via" menu.
Shareing is a feature the application needs to explicitly code for and then advertise to the system that it accepts share requests.  If you have an SCP app that you like but it is not offering the share feature try checking if the developer has a website with more information.  If you still have no luck try emailing the developer and asking for the feature.