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Within 2D views, only entities within the 2D View Cutting Planes tolerance are displayed. If objects which should be displayed are not shown, tolerance may be increased through Options > Dimensions/Tolerances > 2D View Cutting Planes +/-.
The blue up and down arrows change the elevation at which the 2D view is taken, as shown in Figure 1:
Figure 1 - Adjust view elevation
Metadata
Name: 2D-view cutting planes
Description: Setting the tolerance for cutting planes within 2D views such that all desired objects are displayed.
Program: SAP2000
Program Version: 14.2.0
Model ID: na