src/vs/workbench/services/remote/common/remoteExplorerService.ts/RemoteExplorerService/setEditable
class RemoteExplorerService:	setEditable(tunnelItem: ITunnelItem | undefined, editId: TunnelEditId, data: IEditableData | null): void {
		if (!data) {
			this._editable = undefined;
		} else {
			this._editable = { tunnelItem, data, editId };
		}
		this._onDidChangeEditable.fire(tunnelItem ? { tunnel: tunnelItem, editId } : undefined);
	}