Sending a Press and Hold in Broadlink IR Remote

Hi All, I have a Monoprice motorized mount for my TV, with an IR remote.

I’ve acquired a Mini 4, and I’ve been able to learn the codes from the remote for Up and Down:

    "tv": {
      "up": "JgBQAAABHpIQFBETERMRExETERQQFBA4EDgQOBA4EDgQOBA4ETcRExETERMRNxETERQQFBAUEBQRNxE3ERMRNxE3ETcRNxE3EQAFBQABH0oQAA0F",
      "down": "JgBQAAABHpIRExETERMRExEUEBQQFBE3ETcRNxE3ETcRNxE3ETcRExETETcRNxETERMRFBAUEBQRNxETERMRNxE3ETcRNxE3EQAFBwABHUsQAA0F"
    }

The problem is that this remote operates by pressing and holding the button continuously until the TV is raised or lowered, about 45 seconds. I can set a very high repeat count, but rather than smoothly going up and down it jerks repeatedly because the command keeps starting and stopping.

Is there any way to get it to just keep sending the code for a period of time?

I have the exact same setup and I’m looking to solve the same problem. Did you ever find a solution?