I have so many records in a custom list. How to insert a new row between two records (for example between list items with IDs 31 and 32) using browser. Could you help me with this? Thank you.
You cannot insert list item between two list items using a browser. That would mean changing the internal ID's of list items which is AFAIK not supported.
You can always create your own custom ID column (number format) and sort on that using a custom view. Then if you need a row b/w 1 and 2 you can number it 1.5