Half-Diminished Symbol in Logic

I'm now using Logic to do all my scoring. It's so much easier to do sequencing and all the audio stuff, and then simply add scoring at the end, rather than running a wholly separate program. It's certainly up to the task of producing neat clean and accurate charts too.

But there are various smaller issues:

Does anyone know how I can get a decent half-diminished symbol? This is a circle with a slash through it, but it's half-sized and set up about half a character high. I know some prefer to state it as m7b5, but I don't have the room for that in some circumstances.

Secondly, how about a triangle appropriately proportioned for use as a Major 7th symbol?

Thanks for any aid.

-- Gerry