Yes, you can manage content sources in bulk by going to Content Sources – Click on Select all – Click Teams to change the teams – Click plans to change the point plan – if you want to Auto publish click Auto Publish – Click more to Disable Auto ...
Yes, you can manually manage notification for users for a particular content or content source. Go to Content Source -> Select the Content Source -> click the 3 vertical dots -> enable/disable notifications
Yes, you can create default categories for a source while creating the content source, by selecting any of the existing categories, or by typing in a new category and selecting it as mandatory