Hi, Although it is not recommended, if you really want to do it, you can record the start time of opening the page in the OnOpenPage trigger, then record the end time in the OnClosePage trigger, and finally calculate the user's stay time on this page. Every time you open a page is a new record. In addition, if you want to record what was modified, you can also do it in the OnModifyRecord trigger.
However, I don't think this is necessary and will slightly affect system performance.
Hope this helps.
Thanks.
ZHU