The editing interface of the tablature NotePad now comes with the option to apply multiple copy-paste actions to a selection of notes. That option represents a considerable gain of time when you are editing your tabs.
To use it, just keep your finger pressed on the tablature a few seconds, or tap it twice swiftly anywhere on the editing zone. In that second case, the nearest beat is highlighted for automatic selection.
The first case gives you a choice to start a selection on the nearest beat, or else to select all of the current measure.
To adjust the selection, you just need to shift the two blue dots respectively to the left and to the right. You are then free to copy or cut that selection, or even to replace it with another selection you have made previously.