Institution wants to know the exact date of the last lesson of a course. They are now manually checking the last lesson date by clicking on each course -> and search for the latest lesson time

The reason for this requirement: In reality, the admin doesn't set the course validity period (course validity period) because there might be some extra lessons created after the course's validity period due to unexpected reasons like national holidays, teacher days off, etc. -> Because of that, the institution's admin wants to know the start date of the latest lesson to calculate the amount of the course that is overdue

For example: a  course valid for 2 months starts on January 2024 and is expected to end in February 2024. The admin doesn't set the course validity period, but there is a tag for that course to indicate the end time. Due to some special occasions, the latest lesson of that course is in March. Therefore, the admin has to compare the latest lesson date with the tag to determine if this course is overdue.

Next to the column of First lesson date (首节课日期), add a column to show the Latest lesson date (最新节课日期) -> when user download the full table, they can filter the latest lesson date to know which course is still having lesson after the expected end date