We used to have the expanded
element in the group options when setting the system.xml file, e.g.
<sections>
<groups>
<groupx>
<expanded>1</expanded>
but it's no longer there in the new structure in Magento 2, I checked system_file.xsd
and couldn't find it. Is there an alternative in Magento 2 to have all the groups expanded by default.
Best Answer
You can use
<attribute type="expanded">1</attribute>
Ex: