Unable to change settings in WP Scheduler plugin

hello, i am using the Scheduler plugin for WordPress. I am trying to add a custom field that contains a link to another page. i saw in another post that i can do this by creating a custom field and then modifying the event template for that new field. however, i am unable to successfully change any of the options in the settings page of the scheduler. somehow, i succeeded in adding a custom field (this doesn’t always work but it worked once), but no event template was added for that field. also, if i try to modify the event template of the default text field then press “Save Changes”, my update is not saved. i am using v2.0 of the plugin. can someone please shed some light on this?

Try to update to the 2.3 version, it fixes most issue with invalid config saving

downloads.wordpress.org/plugin/e … er.2.3.zip