[Feature request] `then` on new line

I believe my project needs support for an option that allows you to transfer if, as follows

if expr1 then
    expr2
else 
    expr3

Should, in my opinion, support conversion to the following two formats (on a par with if expr1 then expr2 else expr3)

if expr1 
then expr2 
else expr3

if expr1 
then 
    expr2 
else 
    expr3

if expr1 
then expr2 else expr3

Unfortunately, I do not know if this functionality is supported, since I have not found a single place where I could get acquainted with a complete list of all the formatting features of your tool. (Could you tell me if there is one?)

UPD: Regarding all this, I found this request. Is it possible to make this a separate option?

Is it possible to separate this from max_line_length? Is it possible to make it more optional and how optional can it be done? We are ready to help in the implementation of this functionality.

Pros and Cons

In our opinion, this will improve the readability and maintainability of the code, as it will clearly distinguish two branches of execution.

Examples

if type'' = typeof<bool> then typeof<BoolHostAlias> else type'' ->

if type'' = typeof<bool> 
then typeof<BoolHostAlias> else type''

if vType :? RefType<_> && globalVars |> List.contains variable.Name then
    declSpecs.AddressSpaceQualifier <- Global
elif vType :? RefType<_> && localVars |> List.contains variable.Name then
     declSpecs.AddressSpaceQualifier <- Local

if
    vType :? RefType<_> &&
    globalVars |> List.contains variable.Name
then
     declSpecs.AddressSpaceQualifier <- Global
elif
     vType :? RefType<_> &&
     localVars |> List.contains variable.Name
then
     declSpecs.AddressSpaceQualifier <- Local

Affidavit (please submit!)

Please tick this by placing a cross in the box:

[ ] I have read the Contribution Guidelines.
[x] I have searched both open and closed suggestions on this site and believe this is not a duplicate

Please tick all that apply:

[ ] This is not a breaking change to Fantomas
[x] I or my company would be willing to help implement and/or test this
[ ] This suggestion is part of the Microsoft style guide (please add a link to section if so)
[ ] This suggestion is part of the G-Research style guide (please add a link to section if so)

fsprojects / fantomas