How can I send multiple txt files present in my PC using a single publication, is it possible?

[Snak3in]

I had already opened a post a few weeks ago because MQTTX on Linux took a really long time to send a publication (about 10 seconds), now I would have to send about 35 files so I can't wait for them to send one at a time.
Is it possible to somehow attach multiple files together?

[ysfscream]

Hello, sorry for replying late (I just ended my vacation). Currently, it seems that this should be an unsupported function. For the first startup, it is very slow. It takes time to optimize quickly on some small devices. You may need to edit a shell script to loop and send these 35 files using the same command but different file names for the function. Although it will be slow, theoretically, it will reduce your operations.