Hey @mvusi and sorry for the delay in my response!
As you might have noticed browsing the forum a bit, we do not have the classic linear buckling module implemented on our platform. However you could achieve this by working around with a nonlinear analysis which is however significantly taking longer to solve - an interesting and useful post on this can be found here: Euler buckling simulation - #12 by rszoeke.
Let me know if you have any further question(s)!
Jousef