Can't use split mode HJKL because H is right-click

[9p4]

To reproduce: run wl-kbptr -o modes=tile,split, select a tile, then attempt to click on something to the left of the current pointer using the HJKL keys to navigate.

[moverest]

Better defaults and greater customization are indeed needed here. In the meantime you can change the click bindings by setting the general.home_row_keys config, e.g. with the CLI option -o home_row_keys=abcdefghijk where the first 8 will be used to designate areas in the bisect mode and i, j and k will be the right, left and middle mouse buttons.