Hello,
Of course you can do it! In current version 5.96 mode FT8 is not included (it will be included automatically in version 5.97 which will be released soon). So you have to add it manually in Edit | Add / Edit modes. Press the NEW button and add the FT8 mode.
Once FT8 mode is added please read the Digital modes interface chapter in Swisslog help to know how to configure it in Swisslog and read also the WSJT-X / JTDX Operation section. This is a direct web access to this chapter:
http://www.swisslogforwindows.com/french...upport.htm
Best 73