I just configured the device.

I enabled mqtt server config wit username and password.

Unfortunately in mqtt logs I cannot see the username from the smart-mac but just:

1557525454: New connection from 10.x.xx.xxx on port 1883.
1557525454: Sending CONNACK to 10x.xx.xxx (0, 5)
1557525454: Socket error on client , disconnecting.

I'm a beginner. Can i get some advice 

I would like to see the widget in the form of a calendar, which when clicked (choosing) the date display data for that day. And would be able to choose between dates. Yes, you can do all this in the charts, but there is not very convenient, especially on the phone. And the promised widget-table too wait.

I would like to adjust the size of fonts in general widgets.