Zac,
What you want to do is create a library part for each 2D symbol. These you will then be able to schedule.
You can check out the following post:
creating 2D library parts
HTH
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"