Currently it's not possible to select multiple items within the "Condition Builder - Begin/Else If Condition" window to edit, move, or remove. This could be useful.
Currently it's not possible to copy and/or paste items within the "Condition Builder - Begin/Else If Condition" window; There is no context menu, and the usual keyboard shortcuts(CTRL-C, CTRL-V, CTRL-X) don't appear to do anything.
I often reuse parts of a condition so I don't have to retype variables names or tokens, so this feature would be quite handy to have within the Condition Builder as well.
EDIT: This has been implemented.