Drawing Scale PropertyManager needs an extra button for "User Defined Scale"

Clicking "Use Custom Scale" then scroll all the way up to "User Defined" and you can enter your scale. There should be just another radio button and type in your scale.

I do this all day drawings, when its just one drawing its not a big deal, but when you have to change like 10 drawings a day with 3-4 views it gets really annoying.

SolidworksUser Interface