Legal about symbol usage

• May I share printed material or files with METACOM symbols with others?
• May I publish METACOM symbols on the Internet?
• May I also use METACOM symbols in digital media such as learning apps or eBooks?
• May I publish METACOM symbols in printed matter?
• Are communication boards or notices in the school/daycare center or similar also print products in which only a maximum of 25 symbols may be used?
• Am I allowed to change symbols?
• Where can I find the full terms of use?