Secure delete command in Sandboxie

When I want to apply secure deletion of sandbox using automated invoke Eraser delete command in Sandboxie by clicking on the Eraser-5 tab, I get this:

which is somewhat different from what is shown on Sandboxie's website. It displays:

I changed "resultsonerror" to "results" to make sure Eraser didn't sleep it over. However, regardless the difference, it seems to work fine.

But when I try to edit the erasing method by changing "method DoD_E" to "method Schneier", the secure deletion doesn't seem to happen. Why? It doesn't sound logical that SBIE can invoke only one erasure method.

Can anyone explain, please?

 

I've used

C:\Program Files\Eraser\eraserl.exe -folder "%SANDBOX%" -subfolders -method Random 1 -resultsonerror

in the past without problems. At most "Random 3" would be sufficient. Anything else seems to be overkill.