Feature request: pin a task to today, so the project "floats" with a todo task

[Olivier <O Zucker web de>]

Hi planner-developers,

is it planned to add a feature where you can "pin" a todo task in terms 
of scheduling to "today" (current date)?
So a project, once started, and if it has todos left, progresses 
automatically, floating in terms of finishing date and subsequent tasks?

That would be a huge benefit for how I use planner, and possibly other 
users as well. Everytime I open a planner project, dates are outdated, 
and I find myself fixing it by changing project start date (this way 
losing information about when done tasks actually started) or by 
adjusting dates of scheduled tasks (tedious). Having planner calculate 
this would mean tie-ing in the real world into planner.

(Quite possibly I am using all this the wrong way)