Expression paramaters

When writing expressions with required declaritives, ex: "linear"
Rather than the auto-complete resolve to "linear()"
Perhaps, just maybe as a reminder to users, the structure could be ghosted in place, "linear(input,inputValueLow,inputValueHigh,outputLow,outputHigh);"

Another example would be the wiggle expression. ratehr than "wiggle ()" being the auto-complete, some thing like "wiggle (frequency, amount)" would be much more useful. 

Saving time by avoiding the need to use another application to research or remember the properties would be extremely useful.