@pnp.horse The JSON im using,
{
"elmType": "div",
"inlineEditField": "[$ActivationCode]",
"txtContent": "[$ActivationCode]",
"style": {
"border": "1px solid transparent",
"--inline-editor-border-color": "LimeGreen",
"cursor": "pointer",
"padding-left": "5px"
}
}

Ah thanks Jim, probably too scared they will break something 😆