Joomla accesslevel Form Field Type
It provides a drop down list of access level options with the current option selected. The accesslevel field extends the list type field.
Example XML Definition
<field name="access"
type="accesslevel"
label="JFIELD_ACCESS_LABEL" />
Additional Parameters
multiple: It defines whether multiple items can be selected at the same time (true or false).
useglobal: If set to true, it will show the value that is set in the global configuration if found in the database.
Examples
1. Access Field (com_content)
<field
name="access"
type="accesslevel"
label="JFIELD_ACCESS_LABEL"
filter="UINT"
validate="options" />