As long as the frequency analysis option was removed (I used it only last year) I reckon that eigenmodes could be found by a harmonic anlysis instead, just submiting the structure or part to a sinusoidal small displacement and then sweeping up the frequency.
At least that’s what I recall from my past life as antivibration engineer: we did this in the lab with a shaker and an accelerometre+FFT would read the modes.
Now, I don’t manage to do it in simscale and I don’t either find an example. All eigenvalues examples I see in the forum are from some time back, when the frequency analysis was available. And of course they don’t work, just receiving a message: this analysis is no longer supported.
Any hint or help would be great. Thanks in advance