Honestly @stoni1989 this can all be accomplished…you just need to use New-UDCard then in that card nest https://poshud.com/New-UDTextbox to give you a text box, then in either the same card, or a new column or new row put the New-UDSelector then repeat the process to add the multi-line text box, sure maybe UD-HELMET could style the textbox…thats my thoughts anyways 
I am using UD for about 3 different databases at work read and write to… I don’t have any v3 links off the top of my head…but they are on this forum
found a link here Universal Dashboard v3 Progress