How to use DURATION fieldtype in my object

[MaTT]

Can't find type DURATION in list of types. Please help

[tanya]

Hello
Only manually you can add it
open application/Espo/Modules/Crm/Resources/metadata/entityDefs/Call.json, copy duration field defs, and paste it in own entityDefs. Check 'start' and end 'options', fix select option

[MaTT]

Thanks for your answer, it is not good solution for my task.
I need simple time field, like a currency field with "min" text after value of this.

[tanya]

In general, duration is notStorable field.
you an create int field and set dateEnd calculation in formula