For Classic Guest Dropdown, the number of guests to show can be set from Theme Options > General > Booking Settings
Help https://help.wprentals.org/article/how-to-manage-guest-options/#b_wpestate_id
How to Change guest number in search with an incremental value
In case want to change the guest dropdown that appears in the search front end with a dropdown that shows options in incremental value, you need to know that list is is populated by a function called in advanced_search.php.
$guest_list = wpestate_get_guest_dropdown();
The actual function that has the dropdown list is:
wpestate_get_guest_dropdown – defined in function libs/help_functions.php.
Make the change in libs/help_functions.php to change advanced search dropdown.
Ex: This new code
for($i=100 ; $i<2101;$i += 100)
Live code screenshot
This code would result into this dropdown style:
Change guest number in Submit Form
For submit property pages go into submit_templates/ property_description.php and property_description_first.php and around line 170 you have
for($i=0; $i<15; $i++) {
Change the PHP code to include incremental values and change your values as you wish
Ex: This new code
for($i=100 ; $i<2101;$i += 100)
Live code screenshot
This code would result into this dropdown style:
Contact:
For contact owner form from property page go into libs\ajax_functions.php , function wpestate_show_contact_form_simple and around line 2208 you have
for ($i = 2; $i <= 14; $i++) {
Change the PHP code to include incremental values and change your values as you wish.