Hi @lladefian,

I would recommend using a single merged feature type for this as it will simplify things. On the DXF writer feature type, you can use a Feature type Fanout to ensure all of the input layers that are read into the workspace are written to the output. Layer names are stored in a format attribute called fme_feature_type (in addition to autocad_layer) so you can use a feature type fanout by this attribute in the layer name parameter.

I have attached a sample workspace that should help you get going with this - gives an example of a feature type fanout and a dataset fanout.

I would highly recommend checking out the fanout article linked above as it goes into greater detail about how to fanout both feature types and datasets (or both!). There are additional resources for Fanouts in the FME Desktop Advanced Training in case you are interested in learning more.

Hope this helps!

Fanout_Example.fmwt