Making all RockPlot2D Objects Visible

RockPlot2D | View | Make All Objects Visible

All 2D graphic items can be rendered invisible in two different ways:

By accessing its Attributes window and removing the check in its Visible check-box (see Editing Graphics)
By making the layer in which the item resides invisible (see Working with Layers)

Select the View | Make All Objects Visible option to make all individual objects and all layers visible.