Quickflow actions are in editor actions to boost your workflow and make it frictionless. You can find out more about them below:

Copy selector

Generate breakpoint

Below Breakpoint

We could generate media query by right-clicking on certain breakpoint inside the Oxygen Builder as shown in the image below:

This is the way Oxygen Builder writes code for breakpoint (desktop first)

And this is something which we're going to get:

@media screen and ( max-width:  1366px) {

Above Breakpoint

If we hold CMD/CTRL key, we could generate a media query above a certain breakpoint by right-clicking as shown in the image below:

And we're going to get code like this:

@media screen and ( min-width:  1366px) {