different settings for different user accounts?

[shmu26]

How can I set different forced programs for a different Windows user account?

[Syrinx]

How can I set different forced programs for a different Windows user account?

https://www.sandboxie.com/index.php?Enabled

I believe you'll have to edit the ini manually. Basically you find the box you want to limit to specific accounts then go to its Enabled=y line then add a comma and a user name. If you want to add more it'd end up looking like:
Enabled=y,User1,User2,User3

A sandbox that has been restricted to specific users is considered hidden to all other user accounts. Those other user accounts will not see the sandbox listed in Sandboxie Control, and any Force Process or Force Folder settings will not apply to those user accounts.