Make-parameters-of-Position-Sizers-optimizable

If I use one of the "basic" Position Sizers, there is "Make Optimizable" button close to the sizer's parameter:



If I choose one of the "Advanced Position Sizers", I usually get more options/parameters, but there is no "Make Optimizable" button:



This is unfortunate for two reasons:
* These advanced position sizers promise significantly better trading results
* Because of the mutitude of parameters the help of an optimizer in finding good parameter combinations would be very helpful

Please add "Make Optimizable" buttons to the parameters of advanced position sizers.