Dear Hank, First of all thanks for your comments.
1) I manage 2 ASNs 378 and 3339. Most ISPs manage quite a few. The model of having myASN based per ASN number is wrong. It should be based on a person or mntner who has authority for multiple ASNs. Otherwise, the tool becomes cumbersome.
Indeed! We have thought about that before and right now we're working on a new version that will solve this problem.
2) When I login to myASN, I would like to see that the system has auto-learnt all my announced prefixes and presents a menu of prefixes - 1 per line - with boxes to be checked or modified - such as "remove" or "holdtime", "ttl", etc.
This functionality is also implemented on the new version.
3) From http://www.ris.ripe.net/myas/accounts/378/myashelp.html (individual help page) you should have links to the FAQ as well.
I will do it. By the way we're demonstrating this new version this week during RIPE46. So, if you are attending please come and have a look. Regards, Maximo.