A cheat table / trainer by DrummerIX for Dragon Quest Treasures [Switch, Yuzu] in the Yuzu emulator

Official discussion topic 

Options[+10]:

• Activate Trainer 
• Save Current Trainer Values 
• Load Current Trainer Values 
• Change Slot Config Description 
• Infinite HP 
• Current Gold 
• Mia/Erik Current HP 
• Monster 1 Current HP 
• Monster 2 Current HP 
• Monster 3 Current HP 

Notes:

Get to point in Yuzu where you have loaded a save game or can move around in game. Then press F1 to Activate and wait at least 20-30 seconds for things to get setup. I had to write much code to set things up mainly because of the emulator and things.  You also may need to view the main menu a few times for the Gold pointer to activate and populate.