doc detail use it this way

src-ui/src/app/services/rest/document.service.spec.ts

@@ -563,6 +563,20 @@ describe(`DocumentService`, () => {
 
     req.flush('task-id')
   })
+
+  it('should call appropriate api endpoint for running zone OCR', () => {
+    const url = `${environment.apiBaseUrl}${endpoint}/${documents[0].id}/run-zone-ocr/`
+    subscription = service.runZoneOcr(documents[0].id).subscribe()
+    let req = httpTestingController.expectOne(url)
+    expect(req.request.method).toEqual('POST')
+    expect(req.request.body).toEqual({})
+    req.flush({ status: 'completed', results: [] })
+
+    subscription = service.runZoneOcr(documents[0].id, 3).subscribe()
+    req = httpTestingController.expectOne(url)
+    expect(req.request.body).toEqual({ template: 3 })
+    req.flush({ status: 'completed', results: [] })
+  })
 })
 
 it('should construct sort fields respecting permissions', () => {

src-ui/src/app/services/rest/document.service.ts

@@ -367,10 +367,13 @@ export class DocumentService extends AbstractPaperlessService<Document> {
     })
   }
 
-  runZoneOcr(id: number): Observable<OcrZoneRunResponse> {
+  runZoneOcr(
+    id: number,
+    templateId: number | null = null
+  ): Observable<OcrZoneRunResponse> {
     return this.http.post<OcrZoneRunResponse>(
       this.getResourceUrl(id, 'run-zone-ocr'),
-      {}
+      templateId ? { template: templateId } : {}
     )
   }