[whpalmer4]

Are you selecting a context (or project) by popping up the list and scrolling, or by just typing? OmniFocus will quickly narrow the list down as you type, matching characters against the remaining possible choices. For example, I've got a nested context for library branches in errands, with the deepest level being

Errands : Library : San Mateo : Marina

which I typically enter by simply typing "e l s mar" in the context field thanks to the magic matching function. I am typing the first letter or three of each component of the name, with "Mar" needed to differentiate "Marina" from "Main", but the matching works anywhere in the name, and if I wanted to spend slightly more mental energy to save a little typing "e l s r" would do the trick. After typing the first character, you'll see the list of remaining candidates, and how your string matches against them. Eliminates a lot of mouse action!