How to get record before and after in forall loop powerapps

[Syndicate_Admin]

I am trying to run a function that returns a table with a corresponding date index and date text. This is so that I can display the information in a tutorial screen. However, I am confused on how to access to the previous record. Here is my pseudocode:

```
ForAll( Tweets (sorted by crf1d_date_index),
If(the record IS NOT the LAST record,
If('crf1d_date_index' != 'crf1d_date_index' of the NEXT record,
{
Step: crf1d_date_index,
Text: crf1d_tweet_time
}
)
)

If(the record IS the LAST record,
If('crf1d_date_index' != 'crf1d_date_index' of the PREVIOUS record),
{
Step: crf1d_date_index,
Text: crf1d_tweet_time
}
)

)
```

[Syndicate_Admin]

Hi @jaugustin12 ,

My first idea was to add an Index column. Looking at the way to do that, also involving a ForAll() loop, perhaps you can use this solution and combine it with your requirements:

https://powerusers.microsoft.com/t5/Building-Power-Apps/Adding-an-index-column-to-a-collection/td-p/...