Renders selected entities into one PNG and returns a data URL.
Database object ids to include in the preview
Maximum output width or height in pixels
Renders selected entities into one PNG and triggers a browser download.
Database object ids to include in the preview
Maximum output width or height in pixels
Exports one merged preview image for the specified entity ids.
Reuses the same batch extraction path as MOVE/COPY/ROTATE jigs, then captures through AcTrRenderer.renderEntityPreview.