Action planning - set up & access

We are using action planning for the first time this year and I'm running into some issues. We distributed survey results to our leaders through a dashboard this year. All eligible leaders input action plans for their areas. The dashboards and subsequent action plans are attached to the organizational hierarchy. Our HR business partners (HRBPs) support the leaders in creating the action plans. I would like the HRBPs to be able to see and edit all the action plans. I have given them full access to the dashboard and all the editing and action planning permissions I could find. They can see the action plans through the Action Plan summary tool, but can't make any edits. Any ideas how to give them more access? Additionally, is there a way to organize the action plans in a semblance of a useful way? I'd like to group them by department or any business unit relevant to our business. Thank you, Jenny