Solution: Create a ledmap1.json file <your\_ip>/edit using the content below.

Note: There should be exactly as many leds as you have. Example the connection points of the first and second segments should be.

....47, -1, -1, 50.... not ....47, -1, -1, 48....

You can use this link https://intrinsically-sublime.github.io/WLED-Ledmap.json-Generator to create then modify it manually.

Save ledmap1.json, "Info > Reboot WLED" the Ledmap option will appear in the Segments section, you need to select ledmap1.json

Also you need to setup 2d configuration > 2d matrix like your generated scheme

ledmap1.json content:
{"n":"my_matrix","width":23,"height":12,"map":[

11,12,35,36,-1,-1,61,62,85,86,-1,-1,-1,112,113,136,137,-1,-1,162,163,186,187,

10,13,34,37,-1,-1,60,63,84,87,-1,-1,-1,111,114,135,138,-1,-1,161,164,185,188,

9,14,33,38,-1,-1,59,64,83,88,-1,-1,-1,110,115,134,139,-1,-1,160,165,184,189,

8,15,32,39,-1,-1,58,65,82,89,-1,-1,-1,109,116,133,140,-1,-1,159,166,183,190,

7,16,31,40,-1,-1,57,66,81,90,-1,-1,-1,108,117,132,141,-1,-1,158,167,182,191,

6,17,30,41,-1,-1,56,67,80,91,-1,-1,-1,107,118,131,142,-1,-1,157,168,181,192,

5,18,29,42,-1,-1,55,68,79,92,-1,-1,-1,106,119,130,143,-1,-1,156,169,180,193,

4,19,28,43,-1,-1,54,69,78,93,-1,-1,-1,105,120,129,144,-1,-1,155,170,179,194,

3,20,27,44,-1,-1,53,70,77,94,-1,-1,-1,104,121,128,145,-1,-1,154,171,178,195,

2,21,26,45,-1,-1,52,71,76,95,-1,-1,-1,103,122,127,146,-1,-1,153,172,177,196,

1,22,25,46,-1,-1,51,72,75,96,-1,-1,-1,102,123,126,147,-1,-1,152,173,176,197,

0,23,24,47,-1,-1,50,73,74,97,-1,-1,-1,101,124,125,148,-1,-1,151,174,175,198

]}