The plan mode allows you to plan your issues using a third dimension. This third dimension can be sprints, components or releases. We explain each one of those below.
This mode is presented in two parts, the backlog area (left part) and the planner area (right part). The issues flow from the backlog to the planner, simply by dragging them. When you need to unplan an issue from the planner, you don't need to remember where it belonged, just hover the appropriate issue and a "X" will appear. This "X" moves the issue to its original place.
Backlog
The backlog shows the issues that are not yet planned either in a sprint, component or release (depending on the third dimension selected in the planner). In this area, you can select up to two different dimensions (columns and rows), filter by JQL or using our quick filters, select saved boards, projects or filters, etc. The board functionality is explained with more detail in Getting Started with Canvas for JIRA, so read that page first if you are not yet familiar with it.
Planner
The planner shows a third dimension, different from the dimension(s) previously chosen in the backlog area. This means that you cannot select the same dimension as in the backlog e.g., if we have selected a board with priority by sprint, we won't be able to select the sprints dimension in the planner.
Planning your Sprints
sprint planning
Story points by components (check the "story points" field is enabled and added to the default screen)
Make sure you have enabled the "Sprint" field...
Permissions... http://blogs.atlassian.com/2016/02/jira-software-sprint-permissions/
Planning your Releases
release planning
Priority by components
Planning your Components
component planning
Issue type by priority or sprints