In a desktop application or a website we may have a UI element called multiple select. The user may select multiple options by holding the mouse button down, like so:

Is there a word or a phrase that can be used to describe this specific action?

A technically inclined friend suggested simply multiple select, but it seems too broad, while a non-nerd native speaker said highlighting, which doesn't seem to fit the bill either.

In Finnish, this is commonly called painting the selection, with the mouse acting as a makeshift paintbrush, indicating the selection by painting the options with a different colour.

I believe that a similar action, selecting, for instance, a group of files from the desktop with the mouse button down is called lasso select, but it is different in that the lasso is actually visible.

In a desktop application or a website we may have a UI element called multiple select. The user may select multiple options by holding the mouse button down, like so:

Is there a word or a phrase that can be used to describe this specific action? The other way to make a multiple selection is to hold Ctrl and click individual options, but I'm talking about the method where you hold the mouse button down and move the cursor to make the selection.

A technically inclined friend suggested simply multiple select, but it seems too broad, while a non-nerd native speaker said highlighting, which doesn't seem to fit the bill either.

In Finnish, this is commonly called painting the selection, with the mouse acting as a makeshift paintbrush, indicating the selection by painting the options with a different colour.

I believe that a similar action, selecting, for instance, a group of files from the desktop with the mouse button down is called lasso select, but it is different in that the lasso is actually visible.