I want to invite members to create tasks, view tasks, and add the group.
Can members open the dashboard and read and write tasks or not?
I use the (OpenProject Community).

Hi Le Sok,

yes, you can use the default member role in each project to allow other users to access work packages in that project.
For example, if you add a user to project A with the role member than that user can read and write tasks in project A.

I encourage you to check out this tutorial video regarding this topic:

https://youtu.be/un6zCm8_FT4?feature=shared

Inviting members will be mentioned at ~15 Min into the video.

Best,
Alexander