Hello,
we are working on it.
For now please use this code to show configurator.
procedure TMainForm.UniFormCreate(Sender: TObject);
begin
with uniDBPivotGridEX1, JSInterface do
begin
JSConfigPlugin('Ext.pivot.plugin.Configurator', []);
JSConfigObject('configurator', 'fields', [JSArray([])]);
end;
end;