Just got my Play og and plus and indeed it is not possible.
A sample spanning 3 steps cannot be effected on the 2nd and 3rd step.
Wtf, such a bummer. So it’s really a oneshot-machine?
If it’s possible in midimode like @mahen said, is it possible to have a “no sample” also?
(which can hopefully be moved and shortened and stuff like a real note, but then only is a placeholder for an effect on that spot during the already triggered sample)