So you can’t do that Amy, BUT…
When you load your own samples, you place them in a directory called Samples, which will hold 128 samples.
You can then also create a subdirectory under Samples called Expansion (Samples/Expansion), which then will also hold another 128 samples.
This will give you the 256 you’re after. 
Interestingly enough, I’d forgotten this, or maybe didn’t even know about it until investigating your question.
I don’t load samples in to it personally, but I might now, just to… you know… do it. 256 is certainly far more usable if you can keep it under the 34MB (yes, 34 for some reason) limit.
Now that I remember this, I might use the two directories (with different selection namespaces in the drumlogue UI) to separate sample types a bit more usably.
One of the other reasons I did load many samples is because the naming convention is restrictive over time (from a maintenance point of view) and you can’t have any other subdirectories to help organize.:
- you can’t have a sub directory like BD, SD, etc…
- you just have names like 000_BD_My_Kick.wav through 128_SD_My_Snare.wav. --> Good luck if you want to add another BD for organization but you have 000_BD - 011_BD taken, followed by 012_TOM… ugh: renaming everything to match this requirement is annoying and I won’t personally ever do it. Should have left the ‘XXX_’ numbering OFF, Korg. Just sort alphabetically like a good little programmer.
Also, those numbers are required. Leaving them off tells the drumlogue to delete the sample. MAYBE you could call all of them 000_blah - 000_blah128, but I haven’t tried that. Falling back to Korg’s apparent inability to sort alphabetically without a counter that makes sense seems like a bad idea.
Ugh: so many things I really suspect the devs were like: wait, what? That’s odd.
And then promptly overruled by the non-technical or the speed of the release date.
In any event, I’d suggest leaving a buffer in counting for each sample type, if you’re organizing them that way.
Meaning: Use something like 000_BD_name - 020_BD_other_name, even if you’re only loading 12 BD samples, so you can load more BD samples without having to rename the counters for everything following when you go to do that.
Hope this helps.
And your English is fine. Better than most other Englishers, lol.