The effect of 1 continuous variable ("fixed factor"?) on a categorical DV controlling for 1 categorical variable (covariate) and 4 continuous variables (covariate).

I can also work with the continuous variables transformed into categorical variables.

Isn't this Binary Logistic Regression? How do I go about "controlling" in SPSS? As in, for the BLR test, there's no way to tell SPSS that some variables are covariates.. I guess SPSS does what I want to do it naturally anyway. That is, in the output table with all the variables and their Exp(B), Sig, df, Wald values etc., the test is designed to keep all but the single particular covariate constant. I have 6 covariates. For each one, the rest are controlled for. Is that true; do I get it right?

Best.