Add Adhoc mode to Wikidata Reconcile UI

Is your feature request related to a problem or area of OpenRefine? Please describe.
Wikidata Reconcile

Describe the solution you'd like
Since Wikidata reconciling is slow for a single column of 1000 items (takes 30 mins), it would make sense to support an Adhoc or one-at-a-time mode that is not batch mode, where the user clicks on a Recon hover button (next to the "edit" button) that would reconcile with the Recon settings previously selected. To begin Adhoc mode, the user would select between 2 radio buttons on the UI for Recon... batch and one-at-a-time and if the user selects one-at-a-time and then clicks OK, they are returned to the datagrid where when they hover over a cell in that Recon column they get 2 hover buttons, edit and recon.
This would allow them to begin reconciling immediately.

Describe alternatives you've considered
waiting the 30 mins.

Start by locating the Wikidata Reconcile UI, its datagrid hover controls, and the existing batch/Recon settings flow. Trace how a selected reconciliation is launched, then identify the UI and tests that cover these controls. Done means one-at-a-time mode can be selected and a cell-level Recon action uses the selected settings without starting a whole-column batch.