I have a form cred showing the post (via content template).
Is it possible to make the submit button open the published post in a new window?
Hello, there's nothing built-in to Forms that will open a new browser tab or window when submitting the Form. In some browsers, you can hold down Control (or Command, on a Mac) when pressing the submit button to submit the Form in a new tab, but that's browser-specific. You would have to configure the Form to display the post after submission.
But I have configured the form to show the post.
However, the post opens in the usual form tab while I would like it to open in a new tab
Right, as I said this is not a built-in feature of Forms. In some browsers you can hold down Control (or Command on a Mac) to force the Form to submit in a new page, but this is browser- and OS-specific. There is no option in Forms to open in a new tab or browser window.
and it is not possible even through Js, filter and the like?
There is no public JavaScript API for Toolset Forms, so there is limited support for manipulating a form with JavaScript. The Forms PHP API can help you change the redirection URL after Form submission, but it is not intended to help open a new window when the Form is submitted. That would require changing the target attribute of the form tag produced by Forms. You might be able to add a target attribute to the form tag produced by Forms using JavaScript, but that is not supported here in the support forums because as I said there is no public JavaScript API for Forms. You could try something like this: https://www.w3schools.com/jsref/prop_form_target.asp, but I can't guarantee it will work exactly like you want. Without a public JavaScript API for Forms, support is limited here and this is considered an undocumented, unofficial workaround with no guarantees.
