I have a little web app that basically shows a roadmap of projects. Think your typical timeline view like this:
Each project has a date. Right now if you want to change the date of a project you double click and you get a detail popup and you can go change the date and then close the popup and the timeline refreshes.
I now have situations where new projects that are added that are top priority so i basically need to change the date of all items after that (which is quite painful doing one by one). Going in one by one for each project is quite painful and i wanted to see if anyone has seen any good examples of user experience around making bulk fields changes.
In some cases i would want to say "push back this set of 10 projects back a month" and in other cases i would think it would be more date specific where i would just want a more frictionless way up updating dates on multiple items. I am thinking some slider or drag and drop, etc but can't find anything very good after googling for a while so wanted to reach out to this community to see if there were any suggestions or example that people that were very good.