Need help in converting legacy Dita maps into FM and creating structured templates

Hi,

Our Organization has recently bought FM.

We have many ditamaps and files made in XMetal that we need to convert to FM.

I tried to create a structured template but the existing files are not adopting all the inherent styles automatically.

Like I want all concept titles to be blue font size 18 and all tasks to be red font size 12. how do I define these properties in the template? and how do I ensure that all ui controls are bolded and all this to happen automatically.

Please suggest good resources/ videos/ steps.

Garima