L2TP with and without IPSEC in one time

Hi all!

Could you please help me with settings?

Is it possible to use l2tp with and without ipsec in one time?

For example - some users will be without IPSEC and some with?

There is one option, Use IPSec with 3 variants: no, yes, required. Isn’t yes same as required? Or yes means yes you may?