Custom repeat days

For example, my ics has this rule repeating an event on Monday, Wednesday, and Friday.
```
RRULE:FREQ=WEEKLY;UNTIL=20211204T075959Z;INTERVAL=1;BYDAY=MO,WE,FR
```

However, after converting, it only has one day left:
```
<2021-09-22 Wed 16:00-17:00 +1w>
```

It would be great if these repeating rules are supported. Thanks!