Selecting multiple parts of the same file

true, i want to select those parts between spoken sentences, and do some bizzare noise reduction (which would be terribly wrong if done on the spoken part), but this software just don't allow us to make multiple selection, even when ERA bundle plugin CAN do select multiple when i ran deEsser

In this case, I would recommend finding the sections you want to use in the original recording in Waveform view, selecting each section and adding as a new marker. Markers with duration (made from a time selection instead of a single point) can be dragged into a multitrack project as clips from the Markers panel. There's a toggle in the Markers panel to show makers for all files, instead of just the active one. When enabled, you can select one or more marker ranges from the file, then drag or insert them into the MT timeline en masse. ALT/OPTION modifier keys will allow you to specify whether to place them on a single track in order of selection, or at the same starting position on multiple tracks.