@hristoterezov , thank you for all the info you have provided. Since you appear to be quite familiar with form 1116, I am assuming here that you do not need any further help.
While I have no familiarity with the On-Line version of TurboTax products , and assuming that the Windows download version is pretty similar,
(a) the easiest way to add Schedule-B ( form 1116) is to use the "open form" tab from the ribbon at the top left and then from the list of forms available, choose form 1116 ( the plus sign ). This will expand the sub forms under 1116. From here choose Schedule-B and then "open". This will add the schedule-B ( form 1116 ). You can herein add the details of your carry over of FTC.
(b) here is instructions etc. for the Schedule-B ( form 1116 ) --> Instructions for Schedule B (Form 1116) (Rev. December 2022).
Hope this helps
