WEB Core 2.6 Class TXDataWebConnection not found

I have a Web Core project using XData that compiles and runs with no issues. But when I enable Web Designer, I get errors that XData components are not found.

I am using RAD Studio 12.1 with latest updates and latest Web Core 2.6 BETA. XData (5.18.0.2) is listed in TMS WEB Core components under Tools->Options->TMS WEB. But when I create a new web core project, XData components are not listed in the Web Designer tools palette. I uninstalled and reinstalled both web core and xdata

Thank you,
Elias

The XData install still needs to be extended to install the XData dataset also for the Web Form Designer. This is on our todolist.

Is there a way to manually install that?

At this moment no, as it requires some work for design-time editors.