To this day i don't get why the devs did a half job with Gleba (like Aquilo freezes everything but there is no "freeze" for spoilage).

And one of thoes things is why only 2 trees?

Gleba is essentially Nauvis but with extra step before getting iron and chopper ore.

All this because , well, that's exactly it. There is not much going on via agriculture. You just plant 2 seeds. That's it.

And that's what i want to ask, is it possible to create more "seeds" to "plant"?

Even if they are placeholder OR/AND we add what item.

Like uranium, stone, and mod resources.

Issue is that there is no mod that adds the crane related elements, including growth, what palnt, new seeds, new soild (honestly, this get's to complicated, how about here we compromise and just use the same soil as vanilla to make things a bit more easy to keep track?) and so on. From what i saw, most mods that add new bacterial related recepies, just skip the planting part and just mutate the bacteria in assembles.

So again, any plan to expande because it would be awsome if gleba would have tons of different plants. And again, even if most are just tined, place holders, and we (in the settings) chose what to actually "growth" from what plant.

And that's what i want to ask, is it possible to create more "seeds" to "plant"?

I would posit that this is exactly what many of my Gleba oriented mods do - add uses to the plants for more agricultural options, try my boompuff, this stingfrond, the slipstacks, and even my demolisher agriculture mods and see if that . All use the agricultural tower to plants seeds which grow and are harvested.

So to answer this question - which I think is what your talking about in the above - yes! It is actually quite trivial to create more seeds to plant - the hard part is thinking of solid game-play elements and reasons for the new plant =)