New option for user defined TRACERS VERTICAL PROFILES?
If implementing a user-defined tracers vertical profile, the user can think of implementing the profile including tracer values as currently implemented for choice 0. A user can also think to define a vertical profile as for velocity components, then may expect its results will be multiplied by tracer values (e.g. defined in the LIQUID BOUNDARIES FILE, see post http://www.opentelemac.org/index.php/kunena/21-telemac-3d/6071-vertical-tracer-profile?start=10#44458).
It may be not clear if the 2 ways are possible or not. To enable the 2 ways, maybe another choice (= 5) could be an idea? User-defined profile times tracer values.