Hi,
Your latest update is very exciting with the introduction of Dataset_Collections!!!
It's very useful for us . I've been testing it in a new install of Galaxy and I can create a Dataset_Collection in my history.
But with the reading of trello cards and this presentation : https://docs.google.com/presentation/d/1D4pbULfe3IbSRVF3xsWvp9GyAct4SNfHhufIp-ysxYA/edit#slide=id.g33c342448_143 I've not yet found how to code a tool to use this collection and/or unique dataset.

Is it possible to have the bowtie2 version (and or Merge Bam) with these 2 possibilities to have an example?  And how can I see the icons in the formular which allow to switch between the use of unique dataset and the use of dataset collection, like is presented in the presentation ?

Thanks.

Julie