BIAB help with chord entry explains that you don't need the shift key to enter chord symbols and quotes '=' for + so you can enter C+7.as an example. My system which is a standard PC doesn't recognize those keystrokes.
I am trying to enter 'E+7#9 and A+7#9 which are not recognized and it just blanks. I don't know any alternative names for the chord. I thought it might be 'Ealt' but I'm not sure. Can you help me with a workaround.