Add a value automatically in the field

[KhamisBaroud]

I have a layer with 3 fields (1. Building number, 2. Street number, 3. Field combining building number and street number) The last field was calculated using the Field Calculator tool.
  But the problem is when you add a new record or a new building I will need to repeat this process Field Calculator
Is there a way to add data in field number 3 automatically without using Field Calculator to combine the value of the building number and the street when a new building is added?

I need to know if there is a script to do so.

thanks beforehand

[AmirBar-Maor]

Hi Joe,

ArcGIS Pro is part of ArcGIS Desktop. ArcGIS Desktop includes ArcMap, ArcCatalog, ArcScene, ArcGlobe... and ArcGIS Pro.

[DanPatterson_Retired]

I think Joe is aware of that, it is the pointing out that the dataset will no longer be available for use in Desktop.

Some people have missed that fine point I am sure and have had to deal with the consequences.