Can't customize Infopath template

[Julian]

I am trying to customize a standard Infopath template. I can't change
anything because most of the commands (e.g. delete) are disabled (greyed
out). The template is not protected and is in design mode, so what is the
problem?

 

[Ramana]

Hi,

If we are getting the data from secondary data sources like xml and SqL
server , properties of fileds in data source will be disabled.

I hope this will help for you.