I got 3 skills from Eurek's quest. The latter 2 are shown as their ID.

Legendary Spirit window has the x button layering issue. And pressing the skill's hotkey should toggle the window. Also recheck maker window to make it toggle when pressing its hotkey.

Could you also do something about the delay when I try to drop all the bullets and arrows from my inventory? I want them to drop the moment I release the left button on my mouse.

Thanks for the idea! A search box in the Scroll Bag and Maker Bag would be a new feature, so it's with the owner to decide. I'll leave this open until we have an answer.

chubby, thanks for the three extra reports. All three are live now (refresh the game to get them).

1. Eurek's quest teaches Legendary Spirit to every class at once, and the two extra copies showed as numbers in the reward message. You now see "Legendary Spirit Lv.1" once. The Maker quest had the same problem and is fixed too.
2. The Legendary Spirit window's X now stays with its own window instead of showing through other windows. Pressing the skill's key again closes the window. The Maker key also toggles cleanly now: holding it down used to flick the window shut and open again.
3. Stars and bullets already drop as a whole stack with no prompt. Arrows still ask how many, the same as the original game. Drops are quicker now, because the game no longer saves your whole character before every drop when nothing has changed. There's still a short wait while the server confirms the drop and puts it on the ground. That check is what stops items being duplicated or lost, so it can't go to zero.

The search box itself is still with the owner, so this ticket stays open for that.

The owner said yes to the search box too. The Scroll Bag and the Maker Bag now have a search box at the top. Type part of a name (for example 'helmet' or 'One-Handed Sword') and both the bag and what you're carrying show only the matching items, on top of the All / Scrolls / Books tab. Refresh the game to get it.