Hi Charles,
Here are the instructions for installing Q2-itsxpress Assuming that you installed Qiime2 in a conda environment.
Installation
Activate the qiime environment
source activate qiime2-2018.6
Install the base package ITSxpress v1.6.1 from bioconda
conda install -c bioconda itsxpress
Install the Qiime plugin Q2-itsxpress v1.6.1 from pip
pip install q2-itsxpress
Activate the module in Qiime
qiime dev refresh-cache
Use
you can now use the commands for single-ended or paired end data:
qiime itsxpress trim-single
qiime itsxpress trim-paired
For more details see the documentation here: