As suggested creating a 'New Idea' of my forum post
1. TestStep expansion
It is currently possible to use this property expansion ${#TestCase#MyTestCaseValue} but this one is not possible yet: ${#TestStep#MyCurrentTestStepValue}
2. TestStep expansion by name change
Let's assume my TestStep is called: Step1
It has a parameter with name: Value1
So to access it, I currently use: ${#Step1#Value1}
Now, when renaming a teststep or cloning it (and giving it a new name), all existing property expansions should also be renamed to reference the new name (In HTTP TestStep for example it should check the endpointURL, the content, the assertions).