I used freerouting to route my PCB. After importing specctra session file, I filled both F.Cu and B.Cu layers. The copper filling is connected to GND network.
Now tracks connecting GND pads are no longer needed, and these tracks make the PCB layout very ugly in some localities. Attached figures show this condition.
If you hover over a track and press “u” or “i” you select more of the track.
With “u” yo7u select it to the nearest split, with “i” you select the whole net.
Then press [Delete] to delete it.
Try simply hovering over such track segment and press Delete. It goes until some point and deletes segments. You can also select without guessing by opening the context menu for a selected segment and opening “Select” submenu. Or use hotkey I or U over a track. You can see what is selected and then press Delete.