remaining program space in ADAU1761 using SigmaStudio

I have a project using 3 ADAU1761. I wanted to add some functions to my existing schematics

I have a couple questions

1) How do I know how much programming space I have left in each device?

Can I see the amount of space used and available when I export the project?

2) Can I be sure my program will be executed within a single cycle (48khz)

is there a way to add a check for missed samples?

Thanks