Understand that "safe" is not absolute (in all aspects of life! :)).

For remargin trigger, use remaining unused margin = Margin slider * Risk slider? For example, remargin when remaining unused margin = 50 * 10 = $500 using the default settings?

And at the other end (the $7k limit so we don't have a problem), withdraw capital trigger = $7k - Margin slider * Risk slider * # open trades? For example, withdraw capital when account balance is $7k - 50 * 10 * 3 = $5.5k using the default settings & 3 open trades?

Thanks.