I there any OOTB functionality for the dialog show/hide(toggle) behavior for Coral 3 dialog,
After usage of dialog converter for AEM 6.4 the below blog related component show/hide (toggle) behavior for the Touch UI dialog got broken.
Adobe Experience Manager Help | Dynamically modifying an Adobe Experience Manager Touch UI Dialog
Yes there is OOTB show hide feature available which used target value concept.
Please refer below link for detailed implementation
Hope this helps