I posted this s few years back
Well - I purchased the Custom keypad - bout £2.50 - there's a version for ipad and iphone..
I then installed the free "tightvnc" on my computer. Selected portfwarding on my router for VNC.
Now the only 2 niggles I had was.... the custom keypad has a problem sending capitals..
It also has problem with the shift key so using ctrl+shift+1 to get a whole note in score view was worked around by doing ctrl+! .
I've only had this for a brief time so the icons I have created are note perfect to look at yet...
For notation users it adds the ability to select rhythm values which is missing... Its seems possible make keystrokes for dotted rhythms too - which I will have a look at ...
Trying to make shortcuts for screensets soon...

Hope images appear