[TenTec] Corsair question

[Shawn Upton]

Can the Corsair take three cw filters?
I tried running the 160m CW contest this past weekend, and I found myself wanting a tighter filter than 500Hz. Problem is, I like the 1.8kHz and 500Hz filters that my Omni C already has. [I know I could swap the 1.8 for 250 but it might get tiring to open up the radio.] Wondering if a Corsair would take three, but some casual googling has not revealed an answer. 

shawn kb1ckt