Update Kentico document field regardless of versioning

I have a field on one of my base page types which I need to update programmatically from an external data feed, so that it can be included in my Smart Search index.The documents are versioned, but I want to update the published value of this field regardless of checkout state, and obviously avoid any sort of overwrite when documents are checked in.The field will not appear on the editor form -- or ideally, would conditionally display for Global Admins.It appears that using the API to update the document without doing a CheckOut fails silently. However if I do a Checkout/Update/CheckIn on a checkout-out page, the author will lose their work I assume?Any way to handle this "versionless" field via the Kentico data model and API?