Is there a way to lock the scale of grid while creating vertical alignment. If not can a icon be introduced to lock the scale while designing the vertical alignment thereafter the user can drag up-down-left-right.
Not sure to understand the issue. The scale doesn't change unless you change it in the View Attributes or using CTRL/SHIFT + mouse roll button.
Is it what you want to disabled?
while designing the profile unlike BRT the grid is not fixed (not referring to exaggeration) on scrolling the grid is uncontrollable to set at one place.