Describe the feature
Currently, if you want to add a block to the search menu it isn't very viable to do it via chat. Instead, you have to open the menu, locate the module, open it, go to the blocks list, search for the block you want, add it, then close the menu. It's a long process. and it's the same for every other module where you have a list of items. (Such as xray, wallhack, or even Item Highlight.)
The only way to do it via chat is by doing:
.settings search blocks diamond_ore
However, this also overrides all the other blocks you had in the menu. Which is why I suggest making it:
.settings search blocks add diamond_ore
.settings search blocks remove diamond_ore
However, it's still a very lengthy command which is why I suggest adding new commands for these modules. If this is added, then the settings cmd probably doesn't need to be altered.

.search add diamond_ore
.xray add diamond_ore
.itemhighlight remove diamond_ore
.stashfinder list
.storagesp add diamond_ore
.nametags add item

Additional info
This feature would be way faster than the current method of editing the list.
Would be cool if it also had cmd suggestions. For example, you would type '.blockesp remove' and diamond_ore would be the next suggested word as it's already in the list.