tekz, you can create a new free account with Dynadot, park you
high traffic/paying domains within Dynadot and this should take care of the $500 thing .. they asked for the $500 to be spent in registration with them, prepaid or
earned from parking, so you do NOT have to spend/prepay, just earn them in parking and you are get the Bulk Prices
Petrosc, such a feature isn't available as far as know within Dynadot, you can instead go to your full list and select all domains in account then deselect domains you don't want to edit and make bulk edits to the rest, this will do OK in case you will edit
most of your domains .. otherwise, you can instead (what I personally do and prefer) organize your domains into folders based on extension/category as you like and simply go to the folder you like to edit it's domains, select all domains in it and make your bulk edit, this will take a little time in the beginning but should save more in the future!
P.S: just for your information guys if you don't know, Dynadot allows you delete domains for CREDIT and not for a REFUND .. as far as I used with Moniker, they allow to delete domains for a Refund while with Dynadot they will allow you to delete domains for Account Credit which you will HAVE to use within Dynadot on other purchase and NOT refunded to your CC/PP and you can't withdraw away in any way, just spend within their service(s)!
I am using Dynadot for about 2 years now, and so far I can say with confidence they are very good, fast, simple and yet cheap enough with Super Bulk Prices
Hope this helps any of you guys