TurboTax asks no questions about the timing of rollovers nor has it ever had any feature to detect violations of the one-rollover-per-12-months limitation. For rollovers conforming to Notice 2020-51 you can simply ignore any mention in TurboTax's help that implies that a rollover had to have been done withing 60-days of the distribution (or for rollovers of other distributions made after January 2020 that had the rollover deadline extended to July 15 by the IRS under Notice 2020-23 as a result of the emergency declaration). The 60-day rollover deadline still applies to other distributions.
TurboTax has never done any calculations of what RMDs should be. If in TurboTax's existing follow-up questions you tell TurboTax that it is not an RMD and you tell TurboTax that the distribution was rolled over, TurboTax will treat it and report it as having been rolled over. No changes are needed to TurboTax's existing behavior for you to be able to report this rollover.
