How to remove imaginary frequency??

Hi communitors

I am wondering that how to remove imaginary frequency in results of dmol3 calculations??

For example, the imiginary frequencies can be removed using opt=calcall in gaussian package.

I know one way that  i changed the geometry of certain molecule with direction of displacement vector.

But i want to know easy way to remove negative freqeuncy in dmol3 as like opt=calcall in gausian package.

I really need you guys comments

Thank you

Best regard

Sunwoo Kang