To edit, remove or use some project items, you need to select those first. There are several ways to easily do this in Virtual Surveyor. This article shows the four ways to select items.
Use Shift+click to select a range of items in the project view.
In the viewport it's also possible to select multiple items at the same time. Press Shift and drag the cursor to draw a rectangle and select everything within it.
You can enable the Area Select tool in the HOME tab. Within the viewport outline the items you want selected by left-mouse clicking. Right click to end your Area Select. Items within the selection area will now be selected.
If you want to know more about this feature, read this article.
When a boundary is selected, go to the TOOLS tab and click on Select Within to select all the project items located within that boundary.