Not with a single operation, the only way is to manually select all notes that should be e.g. 1 quarter longer, change their length, then repeat with another group of notes that should be e.g. 1/8 longer, etc.
Not with a single operation, the only way is to manually select all notes that should be e.g. 1 quarter longer, change their length, then repeat with another group of notes that should be e.g. 1/8 longer, etc.