The Axure RP design environment has resizable, collapsable, and dockable left and right sidebars.
The left sidebar contains the Sitemap, Widgets, and Masters panes.
The right sidebar contains the Annotations and Interactions, Location and Size, and Dynamic Panel Manager panes.
There is also a Page Notes and Page Interactions pane below the wireframe pane.
To resize a sidebar, click and drag the border separating the sidebar and the wireframe pane .
To collapse or expand a sidebar, click on the highlighted portion of the border in the middle of the border.
Each of the panes can be detached from the main window to allow more area for design. To undock a pane, click on the Pop Out arrow in the upper right corner of the pane.
Panes can also be closed by clicking the Close button in the upper right corner of the pane. To open a pane that was previously closed, use the View menu.