The triangle next to the tree prior options goes missing when a coalescent prior (coalescent constant, coalescent exponential, etc) is chosen, because only a single parameter is available: the population model. For the constant population model there is a dedicated input editor already, bit for others they may need to be added.
The triangle next to the tree prior options goes missing when a coalescent prior (coalescent constant, coalescent exponential, etc) is chosen, because only a single parameter is available: the population model. For the constant population model there is a dedicated input editor already, bit for others they may need to be added.