How to get a dimension variable in my property manager

Hai all,

I am new here but I work now for a few months with solidworks and it's amazing. But now a have a question, maybe it's simple or not possible.

I am drawing a axes with a dia of 10 and I extrude it for 10.

Now I will make a property manager where I can say that the length is 100 or 105 or ..... , but I don't wanne put al this configs in a DT, it must be variable.

Is this possible???

Thanks.

Dimitri

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