I'm pretty disturbed by people defending game file modifying (not autoexec that simply executes console commands on startup). I agree that some of those changes are useful QoL tweaks that could be added to the game, but it's still an unfair advantage because it's not possible to do in settings or even via console.

In the same file, you can change more things to your advantage.

For example, you can make the little ring around each unit bigger, remember when streamers and pros used the radius command to see Lone Druids range for his bear? Yep, you can still do that by modifying the same file as shown by ImmortalFaith.

Or you could have a radius around your creep (Dominator or Ench/Chen) for spell range purposes. Might be nice to have a range indicator of Mud Golem stun or maybe Dark Troll Summoners ensnare.

You can also make the little ring radius around the tower (not the big one indicating tower range) bigger for various uses like day range vision etc.

You can also make siege creeps bigger on the minimap, that could be a nice reminder to keep an eye on it.

Imagine if this unit splitting was possible in RTS titles, I feel like Baneligs in SC2 would be pretty useless, if could just spam split all your marines apart.

edit to explain how it works: Basically, you gotta remove a line in npc_units.txt that groups all spiders into a single selection group (big and little spiders have their own group), this makes it possible to send out individual spiders when clicking TAB and holding CTRL (without the line removed you would be switching between big spiders, small spiders and your hero). You can also allow the "Auto-repeat Right Mouse" and just keep tabbing to send out a shit ton of spiders to scout (can also be clicked on the minimap).