BEST Win10 Chinese IME: PIME

Download link: https://github.com/osfans/PRIME/releases

LOL IME NOT displayed solution:

Add the following lines to ..\GameData\Apps\LoLTW\Game\DATA\Menu\IMEConfig.xml in ChineseSimplified section:

		<imeName>中州韻輸入法 (PIME)</imeName>
		<displayName>PIME</displayName>
		<Tag>GFxIME_SogouPinyin</Tag>