Shrink width of a toolbar clickbox

If I create my own toolbar, how can I shrink the size of dropdown boxes like:
uno:StyleApply uno:CharFontName uno:FontHeight ?

They are wasting a lot of space when they are unchecked. I could use some of that space to add additional icons and avoid the expand >> arrow to show up on the right.

You can assign icons and/or custom names (short names, even one character if you want it) to the custom toolbar functions. Use the Tools - Customize feature. And you can use the built-in icons or you can import custom icons too.

@Zizi64 I did spot the rename feature, but that does not help at all when it’s about the white space area being wasted until the dropdown arrow is displayed.

Please embed your custom toolbar (and the related macros) into a sample document and please upload it here.

It’s tricky without “code” or “spoiler” tags to format the xml, so sorry if it looks weird. I did add an image and red circled the white space areas that are wasting space:

It’s in German, I don’t know how to change menus to English.

<?xml version="1.0" encoding="UTF-8"?>

<toolbar:toolbar xmlns:toolbar=“http://openoffice.org/2001/toolbar” xmlns:xlink=“XLink namespace” toolbar:uiname=“MyCustomBar”>
<toolbar:toolbaritem xlink:href=".uno:StyleApply"/>
<toolbar:toolbaritem xlink:href=".uno:CharFontName"/>
<toolbar:toolbaritem xlink:href=".uno:FontHeight"/>
<toolbar:toolbaritem xlink:href=".uno:Bold"/>
<toolbar:toolbaritem xlink:href=".uno:Italic"/>
<toolbar:toolbaritem xlink:href=".uno:Underline"/>
<toolbar:toolbaritem xlink:href=".uno:SuperScript"/>
<toolbar:toolbaritem xlink:href=".uno:SubScript"/>
<toolbar:toolbaritem xlink:href=".uno:LeftPara"/>
<toolbar:toolbaritem xlink:href=".uno:CenterPara"/>
<toolbar:toolbaritem xlink:href=".uno:RightPara"/>
<toolbar:toolbaritem xlink:href=".uno:JustifyPara"/>
<toolbar:toolbaritem xlink:href=".uno:OutlineBullet" toolbar:text=“Aufzählungszeichen und Nummerierung”/>
<toolbar:toolbaritem xlink:href=".uno:DefaultNumbering"/>
<toolbar:toolbaritem xlink:href=".uno:DecrementIndent"/>
<toolbar:toolbaritem xlink:href=".uno:IncrementIndent"/>
<toolbar:toolbaritem xlink:href=".uno:ControlCodes" toolbar:text=“Steuerzeichen”/>
<toolbar:toolbaritem xlink:href=".uno:FontColor"/>
<toolbar:toolbaritem xlink:href=".uno:BackColor"/>
<toolbar:toolbaritem xlink:href=".uno:BackgroundColor"/>
<toolbar:toolbaritem xlink:href=".uno:SpellOnline" toolbar:text=“Automatische Rechtschreibprüfung”/>