I voted for this as I've found it very helpful to use a similar feature in SSMS 2016 - map mode for the vertical scroll bar. For reference, this is accomplished in Tools - Options - Text Editor - Transact-SQL - Scroll Bars - Behavior - Use map mode for vertical scroll bar and, my preference, Source overview: Medium.
I voted for this as I've found it very helpful to use a similar feature in SSMS 2016 - map mode for the vertical scroll bar. For reference, this is accomplished in Tools - Options - Text Editor - Transact-SQL - Scroll Bars - Behavior - Use map mode for vertical scroll bar and, my preference, Source overview: Medium.