[cbm-vic-20]

> Where's the arrow keys block? Insert/delete/home/end/pgup/pgdown block?

In the nav layer. One popular layout of split keyboards is two 3x5 grids of keys with 3 thumb buttons. With this configuration, it is common to map modifier keys to the home row keys, activated when they are held down. Likewise, for numbers, symbols, navigation, a thumb key is held down to activate that layer. Your fingers never have to stretch more than one key-length away.

Miryoku is a popular implmentation of this. It looks crazy, but you can get used to it really quickly, or alter it to your own taste.

https://github.com/manna-harbour/miryoku

[vladvasiliu]

I get the idea, but how comfortable is it for shortcuts requiring multiple modifiers?

[ValentinPearce]

I have a 34 key split and it's decently comfortable. I have my mods mirrored on both halves so depending on the non-mod key of the shortcut I use the opposing hand for mods.