I’m assuming you have one sample that is playing the full chord sequence, and that you do not have the loop function enabled.
To prevent your sample from resetting before it completes, you’ll need to know or figure out the BPM and bar length of your chord sequence.
–Place one trigger at the beginning of the first bar (or wherever the chords are first supposed to come in).
–Set your BPM
–Open the Scale Menu [Func+Page]
–Set MOD to Pattern or Track depending on your needs
–Set LEN equal to the number of bars you need times 16 (e.g. 64 for 4 bars)
–If you need more than 4 bars, you can set the SCL to 1/2, 1/4, or 1/8 to reduce the playback speed by these fractions
Please let me know if I misunderstood what you are looking for. For more details on the Scale Menu, see page 27 of the manual (section 8.11)