This dialog is used when when you are importing parts, footprints and schematic symbols from vendors of ascii library data and the file is dropped on the library manager.
Technology The drop down lists can be used to choose technology files to base the imported designs on. You do not have to base it upon a technology file. You can select [None] to specify no technology.
If you have selected a footprint technology you can use check Use Layer Mapping which will allow you to map the other EDA systems layers to the Pulsonix layers specified in the technology files. If this is checked then Layer Mapping will be activated before the import starts.