/wp-content/plugins/atr-inline-rtl-ltr
directory, or install the plugin through the WordPress plugins screen directly.In the editing toolbar under "Display more block tools" arrow. You'll see "Direction Rtl" and "Direction Ltr" options.
Select the text that you want to adjust and click on the appropriate button. For example, if you write English text in Hebrew post, Select the English text and click on "Direction Ltr" in the editing toolbar under "Display more block tools" arrow.
The only effect of this plugin is wrapping the selected words (or sentences) in paragraph block with span element with dir="rtl" or dir="ltr" attribute and class="atr-inline-direction-rtl" or class="atr-inline-direction-ltr"