Is there any way to move the UI Button to the left side of the Hotbar?

If not would be a great Feature to just have the option to set Left or Right

Yes, read the docs. It's in the FAQ.

Try
"GUI Button Position": {
"Anchors Min": "0.5 0.0",
"Anchors Max": "0.5 0.0",
"Offsets Min": "-245 18",
"Offsets Max": "-205 78"
}

Thank you,  it was slightly off but those are the adjusted ones if anyone else searches them:

"GUI Button Position": {
"Anchors Min": "0.5 0.0",
"Anchors Max": "0.5 0.0",
"Offsets Min": "-260 18",
"Offsets Max": "-203 78"
}

Gogglehotmail

Thank you,  it was slightly off but those are the adjusted ones if anyone else searches them:

"GUI Button Position": {
"Anchors Min": "0.5 0.0",
"Anchors Max": "0.5 0.0",
"Offsets Min": "-260 18",
"Offsets Max": "-203 78"
}

on my screen its exactly in line with top and bottom and right next to left belt socket , it might depend on the size of the
icon you are using, anyway glad it worked