Relation arrow need it on Text, card or someting#587

In Board view, I can see the cards and arrow it’s great, but I need to understand why I make that link, because the next day i just forgoten, how can i with one simple glimpses understand the relation ???

1)we need Relation text and card which will be in defferent formate to see unique seperate from exixting card and baoards it should appear between lines in any degree similer to the line.
2) only title mode and one click 90 degree discription mode also
3) A page for all the relation and kind of relation and category etc

if possible inorvate this concept in depth 😊 (i want to see it like a mind maping with cards /dox & boards )