[Решено] Enabling WYSWYG editor for custom fields

Background of the issue:
I'm using Custom Product tabs for WooCommerce and want to translate them. I found a setting, enabled it, and now fields show for translation.
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I have lots of text in those tabs and it's hard to translate it without a WYSWYG editor.
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Symptoms:
Difficulty translating text in custom product tabs without a WYSWYG editor.

Questions:
Is there a way to enable the WYSWYG editor for translating custom fields?