In reply to Oo:
If you do it through UKH it's the same way as adding a crag on UKC.
click here.
http://www.ukhillwalking.com/logbook/hill/
In the search box, type the name of a mountain. If it does not come up, click 'add missing hill'.
This will bring up the form where you input all the information.
Once completed click 'send update to UKHilwalking'
Even if you click the tab to 'be a moderator' you wont be, glitch in the system.
So go back to step 1, retype the name in the search box, it should appear there now and then click I'd like to volunteer.
You then need to accept your original changes using the moderate crags link under Logbooks.
Once done you can add the 'summit' the same way as you would add a climbing route. Except under type of climb just click 'special'.