Configure on LXQt ‐ IBus

1. Hit Super key and search for "ibus preferences" and open it.

2. Switch to input method tab and click on add. It will give another pop up.

3. In this tiny popup, click on dotted verticle line option and search for "bangla". After that, an item named "Bangla" should appear, click on it. Now scroll to the very bottom, and you should see "OpenBangla Keyboard", click on it and click on add.

4. In the bottom right, there is IBus panel, click on it and change to "Bangla - OpenBangla Keyboard".