When I used my Katana 100 head on stage i had five Shadows echoes which covered everything we did by them.
You need the Echomatic 1 Apache echo without feedback to play Apache, then the same echo with some feedback to play The Frightened City, Man Of Mystery, The Stranger, Mustang, Midnight, Blue Star and some of the others.
Then you need two Echomatic 2 patches, one with enough echo level for Wonderful Land, Kon Tiki, The Savage, Peace Pipe, Theme For Young Lovers and lots more, then the same echo with less echo volume for Shadoogie, Dance On, Shindig, Shazam Foot Tapper and others that use the same echo and finally the Flingel Bunt Echo which is unique. The other three slots or me have Duane Eddy tremolo/reverb, a Slapback and a Gary Moore heavy sound. The 'panel' option is left with the straight guitar sound with the option of using my foot controller to add chorus or any other three effects i may need. All of these are controllable from the GA-FC pedal, having being set up on my laptop using the Boss Tone Lab.
That said, at the moment my Katana 100 head is being used indoors and I have my Fender Tone Master and the option of several echoes for our gigs.