I have one scenario, when I open records in Tempo I need to insert some log info

One suggestion could be to have the initial load of the record limit the display to just a few fields and provide an image or link to show the full record. From this interaction you can unhide the remainder of the record dashboard and interact with your bind() variable.

If you want to follow best practice and continue to use Record for this purpose, then what tim.clarke suggested is the only way. Having SAIL form performed any write/modify operations without user action (via saveInto and bind()), would break the design pattern of no data modification during evaluation phase.

Alternatively, you could implement this use case as Action or Related Action, so you can use Smart Service node to create a log just right before you chain the flow to SAIL form in a User Input Task. This will also make users realized that viewing confidential information is an action, not just browsing.

thank you very much, I will try this