Typing Automatic (Base) instead Mark trouble

I need a help about saving fonts. I’ve tried to save as ttf with type as just base or mark in all glyph properties, but doesn’t saves and when I’m opening saved font, I see all glyph properties turns back automatic like images…
Adsız2.png
Adsız3.png
Please help me to solve that problem :cry:.

The Type information will always be stored in a font project, but it is only stored in the font if the specific glyph is used with specific OpenType layout features.

So, this article is helpful but using opentype features is very confusing, how can I make glyphs “automatic base” to “mark” in opentype features? I’ll so pleased if I can have a tutorial.

Select all glyphs in the Overview, right-click, and set the type to Automatic.
Glyph Type.png

I’m sorry, but this is not what I’m wanting to do, I’ve just asked for how can I turn this glyphs automatic to base or mark (I mean disabling automatic).

The question seems illogical, so please explain what you want to achieve.

The manual has several topics about OpenType layout features and the forum also contains a lot of information about it.

Maybe this tutorial helps too:
Latin Diacritical Marks – Accents