Saving apps, etc. to SD card

Hi, I have a ZTE Majesty Pro LTE Z798BL. My service provider is Tracfone/Safelink.

I'm having trouble saving apps and other data to my microSD Card. All I get are directions to format the SD card, which I've done like 10 times. There doesn't seem to be any directions on the Phone & Feature Guide, nor on the Tracfone Services Guide. I've looked all over the internet. I'm coming up with goose eggs! HELP!