Layouts of resume are not working and some else questions

Dear.
1. That problem because the Jobica theme allow Candidate select details resume layout when post a resume the resume will display by template Candidate selected. the setting 'Resume Details Layout' in Customizer only work when resume not have custom template, you can see resume select template in meta box 'Select layout detail template' when edit resume in admin.

2. If you want add First Name and Last Name field for registion form. Please install and switch your site to use Jobica Child theme, then add custom code to file functions.php of Jobica child theme.

add_action('noo_register_form_start', function(){
	$prefix = uniqid();
	?>
	<div class="form-group row">
		<label for="<?php echo $prefix; ?>-first_name" class="col-sm-3 control-label"><?php _e('First Name','noo')?></label>
		<div class="col-sm-9">
			<input type="text" class="first_name form-control" id="<?php echo $prefix; ?>-first_name"  name="first_name" required placeholder="<?php echo esc_attr__('First Name','noo')?>">
		</div>
	</div>
	<div class="form-group row">
		<label for="<?php echo $prefix; ?>-last_name" class="col-sm-3 control-label"><?php _e('Last Name','noo')?></label>
		<div class="col-sm-9">
			<input type="text" class="last_name form-control" id="<?php echo $prefix; ?>-last_name"  name="last_name" required placeholder="<?php echo esc_attr__('Last Name','noo')?>">
		</div>
	</div>
	<?php 
},1000);

3. That problem because the heading in Jobica is loaded in header.php file you can see code noo_get_layout( 'heading' ) in file header.php of Jobica theme. When use Elementor Pro to custom header or footer, please add custom code in file functions.php of your theme to display heading when use Elementor Pro custom header.

do_action( "elementor/theme/after_do_header", function(){
	if(function_exists('noo_get_layout')){
		noo_get_layout( 'heading' );
	}
} );

Best regards.

Dear.
1. If you want do it, please go to admin menu 'Jobica -> Settings -> Resumes' and un-select all templates in setting 'Select Resume Detail Template'

Also, to fix resume template only 3 styles, please delete 'Jobica Core plugin' on your site, then go to admin menu 'Appearance -> Install Plugins' and install Jobica Core plugin again to get latest version 1.2.12 to fix your problem.

2. That is default style of theme, if you want remove it, please add custom css on your site

body.boxed-layout .site{
box-shadow: none !important;
-webkit-box-shadow: none !important;
-ms-box-shadow: none !important;
-o-box-shadow: none !important;
}

3. Because the Member page user style with menu on left, so, it can't apply boxed style.

Best regards.

Dear.
1. Please read more in HERE to un-check options of multi-select. if you can't do it, please kindly send for me admin account and your site URL via private reply, i will check to help you.

2. Sorry, the Jobica not support add new user role and if you want do it, you need custom many core of Jobica.

Best regards.