It seems to me that being able to switch the 155 over to a 16 step in stead
of dual 8 is fairly straightforward using 2 other modules.

Rather than have to rig this up every time one would want to use 16 steps, I
was thinking that it may be a very simple thing to rig up an adapter with a
couple of logic IC's for less than $1 to duplicate this functionality.

This 'adapter' would & would save using a couple of modules to perform this
simple task, and would make it quicker to switch between 8 & 16 steps. Of
course this could all me mounted in the sequencer, but a little adapter box
would do just as wel (perhaps there will be a version of the 155 with a
switch like this built in one day )

Has anyone tried to make anything like this Or does everyone just use (or
buy id they don't already have) the extra modules & leave them dedicated to
this purpose

I was thinking of making something like this, but would love to hear from
anyone else who has tied the same.

Paul