Min and max value limiters

What is the problem?

if the user selects one track to change for example the cutoff value and some steps of this track have different values in cutoff when entered , the change will be relative and not absolute . but when its get to low or to high all values become absolute and the spirit of the track gets lost .

What should this feature achieve?

a possibility to stop the changing of the value to the point where everystep becomes the same value

Are there any workarounds?

the undo button -and yes this is a perfect workaround but in a live setup sometimes happens more than one thing at one time and also it doesnt feel like its the right way to do this .

Any links to related discussions?

Any references to other products?

dont know other products that are so free in the way how a track can be that this problem wouldnt emerge as it does here