I have a workflow sending tasks from multiple lists to a "task overview" list.
Users can edit a task directly from the "receiving" overview list by clicking a URL button which opens up the corresponding task from the "sending" task list in a new tab of the web browser. I can also make it replace the page in the current tab by taking "Target='_blank'" out of the calculation.
I'm using the formula below in a calculated column. Is there a way to modify it to open the sending list's task context window in a frame overlaying the existing page (pop-up window) instead of appearing in a new tab or replacing the page in the current tab?
=IF(ISBLANK(SendingURL),"URL Missing",("<a href="&SendingURL&" target='_blank' alt='Open site in new window'><img src='https://whatever.org/PublishingImages/Icon.png' style='height:20px; width:20px;' /></a>"))