This is a feature request to add SpellCheckAnywhere functionality to Clipboard Help+Spell, see http://www.spellcheckanywhere.com. Basically, you press the F11 key to spell check the text box your curser is in.
Currently, with Clipboard Help+Spell, I have to  Select All (Ctrl-A),  Capture/View/Spell (Ctrl+Alt+V hotkey),  select each underscored word to correct, then  copy clip back to the last active window. If I can do all that by just pressing the F11 key, that would be great. Also, there's no need to actually involve the clipboard itself in this operation; if it's contents can be preserved, that would be preferred. However, it would be nice to save the text box contents (being spell checked) into a new buffer within Clipboard Help+Spell so the original uncorrected version is temporarily preserved.
SpellCheckAnywhere is selling for $30, so if Clipboard Help+Spell could function like this, it should get quite popular.