INS variable binding name

[FlyingCatPro]

I recently purchased the Concorde.

I am trying to find the binding descriptor for the INS function/button in order to bind it to a key/controller but unsure what I should select.

What is the INS descriptor/variable name I should I search for in the MSFS Control Options?

Thanks.

[DC1973]

@flyingcatpro That button is a custom variable ( Lvar ) so there is no corresponding bind for it in MSFS, sorry.