[dcminter]

> Though I think that such observations would require at least two years

It is at least two years at least if I'm understanding this⁰ correctly:

Observational concept

Ultra-high precision, long (at least two years), uninterrupted photometric monitoring in the visible band of very large samples of bright (V ≤11-13) stars.

⁰ https://sci.esa.int/documents/33240/36096/1567260308850-PLAT...

[hajola]

I should have been more clear in my original post. AFAIK there are two options on the table - looking at two fields, both 2 years OR looking at one field for 3 years and then doing "step and stare" for the rest of the mission. Step and stare being that they "step" into a new field, "stare" at it for some time, and repeat.