Start point recalculation

[kaosmaki]

1st Use case:
Often I plan a route from a distinct parking place I found in a map, but then in the real world it turns out to be "not there".

2nd Use case:
I load a route from another user (I mostly use GPSies (which directly support PathAway now btw)), but would like to start from anywhere else on the route.

Problem:
All "miles/time to go" information have to be recalculated in mind for the offset.

Solution:
As a user I want a function that allows me to define my actual global position to be the start point of the route and then recalculates all other points so I have the correct route information.

[kaosmaki]

Still I assume this feature would be really of great use. Is it so diffcult to implement or would no one else wish to have that feature?