How to add a new field to output properties popup in Publication Manager?

Hi,

I am attempting to add a new checkbox field to one of our tabs on the properties popup window for Outputs in Publication Manager.

I can make the new field appear but the state is not maintained when I close the window or move from the tab. When I select the checkbox, click Ok, and reopen the tab the checkbox is always unchecked.

Can someone advise what I am missing please?

<ishfrmtab id="PublicationOutput.CDTabPage">
 <label resourceref="PublicationOutput.CDTabPage.Label">CD</label>
  <ishfrmfield name="GGGOnlyField" ishfieldref="FGGGONLY" level="content">
  <label>GGG Only</label>
  <typecheckbox>
    <checkedvalue>True</checkedvalue>
    <uncheckedvalue>False</uncheckedvalue>
  </typecheckbox>
  <value overwrite="yes" ishcondition="ChangeMode in ('Create', 'NewVersion')">True</value>
  <value overwrite="yes" ishcondition="ChangeMode='Update'">True</value>
</ishfrmfield>

Thanks in advance,

Ann



Typo
[edited by: Ann Jensen at 8:47 PM (GMT 0) on 17 Feb 2022]