Hi @Lena_Lapidot - at this moment, the best approach is to do it independently using external packages. You can take a look at the visualization source code if you want to maintain a similar format as MaAsLin 2. In a future release, we would like to output the ggplot2 objects so that the users are able to manipulate them according to their needs. However, until that happens, using external packages is possibly the best solution.
Best,
Himel