Cross Section (xsec)
For a more formal section relative to existing references you may wish to create a datum plane before creating the xsec. Otherwise you can offset parallel to an existing planar reference or dynamically position the cutting plane with the 3D dragger.
Either;
View tab > Section
Offset from an existing planar reference – surface or plane. Activate the 3D dragger in the dashboard.
Properties > Name > give an appropriate name if using in engineering drawings
Accept the section and it will remain active and show in the model tree. RMB > Deactivate to turn off the section.
Or;
View Manager > Sections tab > New > Planar
Give a simple, single letter/number name > enter
Repeat as above
The view manager combines various very useful tools which modify how a model or assembly is displayed. Various different display states and effects can be saved and activated at any time to assist visualisation of the project.