How can I disable a "Ligature" sequence?

Hi, I am new here I hope this is the right forum for my question.

Can someone help me please

I have a font that contains some ligature, every time you write a sequence of two letter the output will be another character.

How can I disable the programing of this “sequence” from happening.

Thank you very much in advance

Format, Tables, Unsupported Tables, and delete the GSUB table. I think that will do what you want. Backup your work, in case it has undesired results.

I think we are in the right place,

Is there a way to edit that table to disable a single “ligature sequence” instead of removing the hall thing?

I’m also interested in if it can be edited

FontCreator cannot edit these tables, and doesn’t support OpenType features. I guess you could delete the GSUB tables and add back the ones you want using the method described in this OpenType Tutorial thread