Editing Processing Instructions Using Form Controls

Oxygen XML Author plugin allows you to edit processing instructions, comments, and CDATA by using the built-in editors.

Editing an Attribute from a Processing Instruction

<?pi_target attr="val"?>

oxy|processing-instruction:before {
    display:inline;
    content: 
        "EDIT attribute: " oxy_textfield(edit, '@attr', columns, 15);
    visibility:visible;
}
oxy|processing-instruction{
    visibility:-oxy-collapse-text;
}