Is it possible to create an expandable column? What I mean is that for example I create a column \"Category\" in which I have two categories \"IT Equipment\" and \"Training\" (drop down list). After selecting \"IT equipment\" another table appears to complete \"type of equipment\" in which I can enter the name of the equipment and after selecting \"training\" another table appears to enter the name of the training. 

Is it possible to create an expandable column? What I mean is that for example I create a column \"Category\" in which I have two categories \"IT Equipment\" and \"Training\" (drop down list). After selecting \"IT equipment\" another table appears to complete \"type of equipment\" in which I can enter the name of the equipment and after selecting \"training\" another table appears to enter the name of the training. 

SebastianSzyroki If you want to show/hide columns based on selection of option from choice column, you can use conditional formulas in SharePoint.

Let's say you created 3 columns: Category (choice column), TypeOfEquipment (Text), NameOfTraining (Text).

Then you can conditionally hide TypeOfEquipment and NameOfTraining fields from list form based on value of Category column.

Check this documentation: Specify conditional formula to show or hide columns 

Example, for TypeOfEquipment column, you can use formula like: 

=if([$Category] == 'IT Equipment', 'true', 'false')

Where Category is the internal name of your SharePoint choice column.

OR If you want TypeOfEquipment and NameOfTraining also of type choice columns, you can use Power Apps to customize list form and create cascading drop downs: 

1. Working with Cascading Lists in SharePoint and Power Apps 
2. Create dependent drop-down lists in a canvas app 

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ganeshsanap 

and can i make a drop down list where i select several options and there are several fields to fill in? In this case, I can't have multiple selections in the Category column, I can only have one selection, then the note column appears conditionally.

if I select two options from the category list, e.g. IT equipment and training, then two additional columns for entering text will appear. Now it's like I can choose only one of these two options and then a new table appears

SebastianSzyroki Unfortunately, SharePoint conditional formulas does not support Choice columns with multiple selections, check: Unsupported column types in conditional formulas 

For this requirement, you have to completely customize the SharePoint list form using Power Apps. 

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ganeshsanap 

Świetnie, wydaje mi się, że to pomaga, ale niestety nie działa. mam 3 kategorie \"Kategoria\" ,,Liczba Pomaranczowa\", \"Liczba biała\" w tabeli 'liczba pomaranczowa' formatowanie JSON wprowadziłem formułę =if([$Kategoria] == 'Sprzęt IT', 'true', 'false ') następnie po zaakceptowaniu pojawiła się następująca formuła (ekran)

ale jak klikam w nowy formularz i wybieram sprzęt IT z kategorii to żadna dodatkowa tabela \"liczba pomaranczowa\" się nie rozwija

SebastianSzyroki For which columns are you adding the formulas? 

You have to apply formula on the fields which you want to show/hide conditionally and not on category drop down field. Also, make sure you are using correct internal names of columns in the formula.

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