Haha, soon you’ll be working on that one! 
Alright, so your main issues are obviously how the Multitag/Select
field values are inserted into / loaded from the table and how they’re displayed.
The important thing to configure here, is the transforming of the values when inserting / loading the data.
I quickly made an example app for you. On the first page I use the table—form setup like you, on the second page the same thing is done with just a table.
(Can’t directly share it here)
If something about the setup of the Multitag/Select
isn’t clear, check the following “guide”. It roughly shows the setup specifically of that field type in the way you want it.
Or you can just ask here if something’s not mentioned or unclear 
Guide
But, first and foremost, you have to configure the field in the table & form. Since there are multiple components having the same field type, it’s far more efficient and future-proof to create an action that yields the data for the Options
setting in the Multitag/Select
field.
An option can have 3 properties: value
, title
and color
. The only thing that is required is the value
. If you provide a title
, then it will always display the title
, but in the actions you’ll always get the value
.
Now you can simply pass the data
of this action to the field setting Options
in the table and the form

(If you can’t write in this field, press the small JS
icon on the right)
Then the select will display the names
Now add a trigger for either On Submit
or On Custom Button Click
to the form, where we pass {{value}}
as Action Arguments, which refers to the value of the form, i.e., the values in the inputs/selects/etc.
In the action that is triggered, you first want to determine whether these values should be inserted as a new row, or if a row should be updated. To determine that, all we need is a Condition
step where just check if the primary key is set. If one is set, it indicates that a row in the table is selected and the form contains the data of that entry. If it’s not set, then we know it’s a new entry.
And then just insert or update the data. But don’t forget to transform the values of the selected tags, which is as straightforward as {{data.field_name?.join(", ")}}
. The ?.
optional chaining operator is important because if nothing is selected, the value is not an empty array []
, but undefined
.
The last thing to do, is transforming the data back to an array when loading the table. Presumably, most people will have a Load Table
step / action, so just toggle the Transform result option and split the joined string into the separate values: