How to get Cost Index for BAe 146 Professional XP12?

in the MCDU of the BAe 146 Professional for X-Plane 11/12, PERF INIT page, prompts for COST INDEX.
Where do I find CI in the simbrief OFP ? insted of CI it shows a cruise profile, such as M70.
Simbrief’s aircraft editor seems to not be possible to change from cruise profile to cost index, so how do I get CI for this specific aircraft ?
146 Professional XP12 cost index | Just Flight Community

Thanks

You cannot; Simbrief’s data doesn’t include Cost Index tables for this aircraft type:

If JustFlight has access to these tables, you could ask them to send their data to Simbrief.

Regards,

Tim

When I dispatched the BA46 at a US operator a very long time ago, I dont ever remember dispatching using CI data. It was a simple airplane. We did NOT have the later RJ70/85/100 variants (that might have CI data) - we had the original BA46s…