Thermal Boundary Conditions
The Show Boundary Conditions 
option, in the toolbar or the Thermal menu, acts as a master toggle to switch the display between Thermal Boundary Conditions and Stress Analysis Boundary Conditions.
- If Show Boundary Conditions is selected, then only Thermal Boundary conditions will be displayed (e.g. Flux, Temperature etc).
- If Show Boundary Conditions is NOT selected, then only Thermal Analysis Boundary conditions will be displayed (e.g. restraints, loads etc).
Show Boundary Conditions is only applicable if the Thermal Method = Finite Element Analysis.
Right Click Shortcut
This option can also be accessed by right clicking the screen in RS2 Interpret, select Display Options 
> Thermal. Toggle on and off the checkbox for Show BC.
from Thermal menu is for thermal boundary conditions, the Show Boundary Condition 
option from Groundwater menu is for groundwater boundary conditions. They do not conflict with each other. Both boundary condition types can be displayed together.