Assign the load to all supports

Select the new column load in the Data Area pane by clicking on it.
Click the Assign button to have the load assigned to all the supports in the project.
Then select Assign To View from the drop-down list as the assignment method. The assigned loadings are displayed on the nodes in the graphics window.
Repeat steps 1 through 3 and assign the Live Load case to all supports in the view.

Note: Alternatively, you could have selected all the supports in the Graphics window by clicking on them and then selected Assign To Selection. Or, you could have selected Assign To Edit List and then typed in the list of nodes for each support.