Usually we don´t input the symbol of the tones If you use the keyboard of souhu, you can download it from here：http://rj.baidu.com/soft/detail/13598.html?ald Then you can follow the picture of this link http://jingyan.baidu.com/article/380abd0a4b9c101d90192cc2.html

I did it! I'll answer myself so maybe i can help others in my situation. So, if you use a Spanish keyboard configuration and want to get the graphic pinyin tones right, do the following: a) for the first tone (āēīōū) press AltGr + Shift + * and then the vowel b) for the third tone (ăĕĭŏŭ) press AltGr + Shift + ç and then the vowel c) second (áéíóú) and fouth (àèìòù) don't pose any problems for us d) for the second and forth tone on the letter ü, first press the " then ' or ` and finally the u However I can't get yet the first and third ü tones. I'll go on with my research.

Ups! You are absolutely righ Oozrz. I'll do that. Xièxie!

We don't write pinyin on computers, so I can't help you. Maybe you should put this question on the English-part(I don't know how to say ,the part people ask questions in english).

install Chinese language pack and don't torture yourself