Converting objects to different stitch types is as easy as selecting the object and clicking on the desired stitch type. All properties are lost when converting types; it’s like starting with new artwork.
There are two conversions that are different than normal conversions, and those are Stipple and Echo. Converting Echo or Stipple to anything other than a run operates normally; the outline and any holes are preserved.
When using stipple objects, there are times you wish to adjust the generated pattern, or apply motifs to the run. When you convert a stipple object directly to a run, the result is a run that has the path of the stipple, not the outline that was used to create it. That result can be turned into a line, motif or anything else.
When converting Echo to run, the result will be one or more objects that are the echoes. You can then apply any stitch type to those objects for your desired effect.