Extra libraries are required in addition to those for the installation of QTVCP for additional functionality
sudo apt install python3-zmq sudo apt install python3-pyqtgraph
sudo apt install python3-pyqt5.qtwebengine
sudo apt install python3-numpy
sudo apt install python3-scipy
sudo apt install python3-matplotlib
sudo apt install python3-poppler-qt5
sudo apt install python3-PyQt5.QtSql
sudo apt install sqlite3 libsqlite3-dev
You may also want a SQLITE browser such as DB Browser for Sqlite3
sudo apt install sqlitebrowser