I'm using TYPO3 since version 3 but I have never tried to customize the TYPO3 BE.
Now, what annoys me more in the BE is that in 'Special Menus' the 'Selected Pages' field displays 3 lines by default. I wish to expand it to at least 10 lines.
Inspecting the BE page with FF Developer Tools shows:
<select id="tceforms-multiselect-57f39f13067b0673730065" size="3" class="formField.
Editing the size value to 10 in the Inspector is exactly what I need.
How could I change that size value in TYPO3?
@Markusson and @Vimal Usadadiya
As suggested deactivating and activating the extension did the trick. BTW no need to use Global. The code I put in ext_tables.php is:
$TCA['tt_content']['columns']['pages']['config']['size'] = 10;