As ATC said...
Extract from my company OM Part D... (refers to legal requirements rather than the stricter company-specific requirements which are limited to 3 TO/LDGs in last 60 days or a red alert will flash up on crewing computers)
"It is a legal requirement... ...engaged in Public Transport, must have carried out three take-offs and
three landings in the aircraft type... ...previous 90 days... ...may be extended to 120 days... ...flying under the supervision of a Type Rating
Instructor/Type Rating Examiner...
The 90-day requirement... ...may be carried out in an approved simulator of the type..."
The wording doesn't specifically mention it, but as it also doesn't specifically prohibit it my interpretation of that is if you are out of 90-day currency but less than 120-day, you could do a 4-sector day or two 2-sector days with a TRI/TRE to get your 3 takeoffs and landings done and reset the 90 day counter.