PowerQuery M-Code: special symbol for previous step name

UserStory: in 99% cases we use previous name as input for current step - very annoying and difficult to read, not comfortable to type and edit (it's always a double work).

Proposal: reserve some special symbol (#, for instance) for previous step name (like "_" for each)

This feature would be very useful for advanced users, who works more with Advanced Editor than with GUI.

Metacode Example:

Instead of this:

 let

    Source = someLoadDataFunction(...),

    #"Step 1"  = someFunction1 (Source, ....),

    #"Nice Step 2"  = someAdvancedFunction2 (#"Step 1", ....),

    #"Clever Step Name 3"  =  someVeryAdvancedFunction3 (#"Nice Step 2", ....),

    #"beautiful Step 4"  = someSmartCode4 (#"Clever Step Name 3", ....),

    Result     = someGeniousCode5 (#"beautiful Step 4", ....),

in

    Result

 It would be nice to use this syntax:

 let

    Source = someLoadDataFunction(...),

    #"Step 1"  = someFunction1 (#, ....),

    #"Nice Step 2"  = someAdvancedFunction2 (#, ....),

    #"Clever Step Name 3"  =  someVeryAdvancedFunction3 (#, ....),

    #"beautiful Step 4"  = someSmartCode4 (#, ....),

    Result     = someGeniousCode5 (#, ....),

in

    Result

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