Half & Double Tempo Without Notes Jumping

When I select notes in the edit window, I often use Logical Editor presets “Half Tempo” and “Double Tempo.” When I do, the notes jump around. They do not start at the same place as I intended. My request is for commands that do this:

Double or half tempo of notes while starting at the same place the original note string started at. To clarify, the first note of a group of notes should begin at the same place after the command.