Id1334

needs parts of id1329

currently, projectdesigner chnages task dates and times with a single calendar control.

Sometimes, one just wants to adjust the date: e.g. when I edit the task at 7pm and don't want the start time to changed to that time. Also, this curently cannot be used to adjust multiple tasks: all will be set to the same time of day, while I might only want to shift all task from today to tomorrow, starting at the original time of day.

FIX:

add checkbox to indicate whether times also should be adjusted. If not, they are ignored and the original hours, minutes are inserted.
My default is dates only (in the checkbox )