test.html

<tx-document-editor
  width="1000px"
  height="500px"
  webSocketURL="wss://backend.textcontrol.com?access-token=yourtoken">
</tx-document-editor>

<div>
	<button (click)="tsInsertTable(10,5,10)" class="btn btn-primary">Insert Table</button>
	<button (click)="tsAddMergeField('«company_name»','company_name')" class="btn btn-primary">Add Merge Field</button>
	<button (click)="tsSetMergeFieldText('New Text')" class="btn btn-primary">Set Merge Field Text</button>
</div>