if i create a new category and i want to include 10 posts do I ahve to select the new category in each post individually or is there a way I can group the 10 posts at the same time in new category?
See the WordPress.org docs for WordPress on how to do ‘bulk editing’
Bulk Edit
The Bulk Edit Posts ‘screen’ is displayed below the Table Of Posts header once, one, or more Posts, have been selected, and the Bulk Action of Edit is Applied. Bulk Edit allows the fields, Author, Comments Allowed, Status, Pings Allowed, and Sticky, to be changed for all the selected Posts. It is important to note, Categories and Tags can be ADDED in bulk to a set of Posts, but it is not possible to CHANGE, or DELETE, a Category, or Tag, for those Posts.
Cancel – Click Cancel to cancel and abort the Bulk Edit of these Posts.
Update – Click Update to save the Bulk Edits made to these Posts.
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most info on how to use basic WordPress functions are found in the WP “Codex” and doing simple Google searches like “wordpress codex bulk edit” will find help 🙂
