Hello Ray,

thank you for teh fast answer, but it looks like the title of my post was misleading. I dont want to move the task to another project, but postpone ( change the date of all tasks for n days ). Is this possible and does project take into account the working days ( when I postone all task for two days then fryday task should go to tuesday)

Greetings

Andreas

Use the List View

Select the Tasks you want to change in bulk, click the row to edit one record, click OK to apply the update in all selected records:

See also:

https://www.odoo.com/forum/help-1/mass-editing-of-products-in-odoo-15-194879